Present — what is happening now, and what happens habitually
| yo | nievoI snow | nosotros | nevamoswe snow |
| tú | nievasyou snow | vosotros | neváisyou all snow |
| él/ella/Ud. | nievahe/she snows | ellos/Uds. | nievanthey snow |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he nevadoI have snowed | nosotros | hemos nevadowe have snowed |
| tú | has nevadoyou have snowed | vosotros | habéis nevadoyou all have snowed |
| él/ella/Ud. | ha nevadohe/she has snowed | ellos/Uds. | han nevadothey have snowed |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | nieve(that) I snow | nosotros | nevemos(that) we snow |
| tú | nieves(that) you snow | vosotros | nevéis(that) you all snow |
| él/ella/Ud. | nieve(that) he/she snows | ellos/Uds. | nieven(that) they snow |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya nevado(that) I have snowed | nosotros | hayamos nevado(that) we have snowed |
| tú | hayas nevado(that) you have snowed | vosotros | hayáis nevado(that) you all have snowed |
| él/ella/Ud. | haya nevado(that) he/she has snowed | ellos/Uds. | hayan nevado(that) they have snowed |
Preterite — a finished past action — it started, it ended
| yo | nevéI snowed | nosotros | nevamoswe snowed |
| tú | nevasteyou snowed | vosotros | nevasteisyou all snowed |
| él/ella/Ud. | nevóhe/she snowed | ellos/Uds. | nevaronthey snowed |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | nevabaI used to snow | nosotros | nevábamoswe used to snow |
| tú | nevabasyou used to snow | vosotros | nevabaisyou all used to snow |
| él/ella/Ud. | nevabahe/she used to snow | ellos/Uds. | nevabanthey used to snow |
Past perfect — had —ed; further back than another past event
| yo | había nevadoI had snowed | nosotros | habíamos nevadowe had snowed |
| tú | habías nevadoyou had snowed | vosotros | habíais nevadoyou all had snowed |
| él/ella/Ud. | había nevadohe/she had snowed | ellos/Uds. | habían nevadothey had snowed |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | nevara(that) I snowed | nosotros | neváramos(that) we snowed |
| tú | nevaras(that) you snowed | vosotros | nevarais(that) you all snowed |
| él/ella/Ud. | nevara(that) he/she snowed | ellos/Uds. | nevaran(that) they snowed |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | nevase(that) I snowed | nosotros | nevásemos(that) we snowed |
| tú | nevases(that) you snowed | vosotros | nevaseis(that) you all snowed |
| él/ella/Ud. | nevase(that) he/she snowed | ellos/Uds. | nevasen(that) they snowed |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera nevado(that) I had snowed | nosotros | hubiéramos nevado(that) we had snowed |
| tú | hubieras nevado(that) you had snowed | vosotros | hubierais nevado(that) you all had snowed |
| él/ella/Ud. | hubiera nevado(that) he/she had snowed | ellos/Uds. | hubieran nevado(that) they had snowed |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube nevadoI had snowed | nosotros | hubimos nevadowe had snowed |
| tú | hubiste nevadoyou had snowed | vosotros | hubisteis nevadoyou all had snowed |
| él/ella/Ud. | hubo nevadohe/she had snowed | ellos/Uds. | hubieron nevadothey had snowed |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | nevaréI will snow | nosotros | nevaremoswe will snow |
| tú | nevarásyou will snow | vosotros | nevaréisyou all will snow |
| él/ella/Ud. | nevaráhe/she will snow | ellos/Uds. | nevaránthey will snow |
Conditional — would —; also softens a request into politeness
| yo | nevaríaI would snow | nosotros | nevaríamoswe would snow |
| tú | nevaríasyou would snow | vosotros | nevaríaisyou all would snow |
| él/ella/Ud. | nevaríahe/she would snow | ellos/Uds. | nevaríanthey would snow |
Future perfect — will have —ed; done by some future point
| yo | habré nevadoI will have snowed | nosotros | habremos nevadowe will have snowed |
| tú | habrás nevadoyou will have snowed | vosotros | habréis nevadoyou all will have snowed |
| él/ella/Ud. | habrá nevadohe/she will have snowed | ellos/Uds. | habrán nevadothey will have snowed |
Conditional perfect — would have —ed; the road not taken
| yo | habría nevadoI would have snowed | nosotros | habríamos nevadowe would have snowed |
| tú | habrías nevadoyou would have snowed | vosotros | habríais nevadoyou all would have snowed |
| él/ella/Ud. | habría nevadohe/she would have snowed | ellos/Uds. | habrían nevadothey would have snowed |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | nevare(should) I snow | nosotros | neváremos(should) we snow |
| tú | nevares(should) you snow | vosotros | nevareis(should) you all snow |
| él/ella/Ud. | nevare(should) he/she snow | ellos/Uds. | nevaren(should) they snow |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | nevemoslet's snow |
| tú | nievasnow! | vosotros | nevadsnow! |
| él/ella/Ud. | nievesnow! | ellos/Uds. | nievensnow! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no nevemoslet's not snow |
| tú | no nievesdon't snow | vosotros | no nevéisdon't snow |
| él/ella/Ud. | no nievedon't snow | ellos/Uds. | no nievendon't snow |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.
I — the speaker
| Presente | nievoI snow |
| Perfecto | he nevadoI have snowed |
| Subj. presente | nieve(that) I snow |
| Subj. perfecto | haya nevado(that) I have snowed |
| Futuro | nevaréI will snow |
| Condicional | nevaríaI would snow |
| Fut. perfecto | habré nevadoI will have snowed |
| Cond. perfecto | habría nevadoI would have snowed |
| Subj. futuro | nevare(should) I snow |
| Indefinido | nevéI snowed |
| Imperfecto | nevabaI used to snow |
| Pluscuamp. | había nevadoI had snowed |
| Subj. imperf. | nevara(that) I snowed |
| Subj. -se | nevase(that) I snowed |
| Subj. pluscuamp. | hubiera nevado(that) I had snowed |
| Pret. anterior | hube nevadoI had snowed |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | nevamoswe snow |
| Perfecto | hemos nevadowe have snowed |
| Subj. presente | nevemos(that) we snow |
| Subj. perfecto | hayamos nevado(that) we have snowed |
| Futuro | nevaremoswe will snow |
| Condicional | nevaríamoswe would snow |
| Fut. perfecto | habremos nevadowe will have snowed |
| Cond. perfecto | habríamos nevadowe would have snowed |
| Subj. futuro | neváremos(should) we snow |
| Indefinido | nevamoswe snowed |
| Imperfecto | nevábamoswe used to snow |
| Pluscuamp. | habíamos nevadowe had snowed |
| Subj. imperf. | neváramos(that) we snowed |
| Subj. -se | nevásemos(that) we snowed |
| Subj. pluscuamp. | hubiéramos nevado(that) we had snowed |
| Pret. anterior | hubimos nevadowe had snowed |
| Imperativo | nevemoslet's snow |
| Imper. negativo | no nevemoslet's not snow |
you (informal) — one person you are familiar with
| Presente | nievasyou snow |
| Perfecto | has nevadoyou have snowed |
| Subj. presente | nieves(that) you snow |
| Subj. perfecto | hayas nevado(that) you have snowed |
| Futuro | nevarásyou will snow |
| Condicional | nevaríasyou would snow |
| Fut. perfecto | habrás nevadoyou will have snowed |
| Cond. perfecto | habrías nevadoyou would have snowed |
| Subj. futuro | nevares(should) you snow |
| Indefinido | nevasteyou snowed |
| Imperfecto | nevabasyou used to snow |
| Pluscuamp. | habías nevadoyou had snowed |
| Subj. imperf. | nevaras(that) you snowed |
| Subj. -se | nevases(that) you snowed |
| Subj. pluscuamp. | hubieras nevado(that) you had snowed |
| Pret. anterior | hubiste nevadoyou had snowed |
| Imperativo | nievasnow! |
| Imper. negativo | no nievesdon't snow |
you all — informal plural, Spain only
| Presente | neváisyou all snow |
| Perfecto | habéis nevadoyou all have snowed |
| Subj. presente | nevéis(that) you all snow |
| Subj. perfecto | hayáis nevado(that) you all have snowed |
| Futuro | nevaréisyou all will snow |
| Condicional | nevaríaisyou all would snow |
| Fut. perfecto | habréis nevadoyou all will have snowed |
| Cond. perfecto | habríais nevadoyou all would have snowed |
| Subj. futuro | nevareis(should) you all snow |
| Indefinido | nevasteisyou all snowed |
| Imperfecto | nevabaisyou all used to snow |
| Pluscuamp. | habíais nevadoyou all had snowed |
| Subj. imperf. | nevarais(that) you all snowed |
| Subj. -se | nevaseis(that) you all snowed |
| Subj. pluscuamp. | hubierais nevado(that) you all had snowed |
| Pret. anterior | hubisteis nevadoyou all had snowed |
| Imperativo | nevadsnow! |
| Imper. negativo | no nevéisdon't snow |
he, she, you (formal) — one other person — formal you shares it
| Presente | nievahe/she snows |
| Perfecto | ha nevadohe/she has snowed |
| Subj. presente | nieve(that) he/she snows |
| Subj. perfecto | haya nevado(that) he/she has snowed |
| Futuro | nevaráhe/she will snow |
| Condicional | nevaríahe/she would snow |
| Fut. perfecto | habrá nevadohe/she will have snowed |
| Cond. perfecto | habría nevadohe/she would have snowed |
| Subj. futuro | nevare(should) he/she snow |
| Indefinido | nevóhe/she snowed |
| Imperfecto | nevabahe/she used to snow |
| Pluscuamp. | había nevadohe/she had snowed |
| Subj. imperf. | nevara(that) he/she snowed |
| Subj. -se | nevase(that) he/she snowed |
| Subj. pluscuamp. | hubiera nevado(that) he/she had snowed |
| Pret. anterior | hubo nevadohe/she had snowed |
| Imperativo | nievesnow! |
| Imper. negativo | no nievedon't snow |
they, you all — several others — plural you shares it
| Presente | nievanthey snow |
| Perfecto | han nevadothey have snowed |
| Subj. presente | nieven(that) they snow |
| Subj. perfecto | hayan nevado(that) they have snowed |
| Futuro | nevaránthey will snow |
| Condicional | nevaríanthey would snow |
| Fut. perfecto | habrán nevadothey will have snowed |
| Cond. perfecto | habrían nevadothey would have snowed |
| Subj. futuro | nevaren(should) they snow |
| Indefinido | nevaronthey snowed |
| Imperfecto | nevabanthey used to snow |
| Pluscuamp. | habían nevadothey had snowed |
| Subj. imperf. | nevaran(that) they snowed |
| Subj. -se | nevasen(that) they snowed |
| Subj. pluscuamp. | hubieran nevado(that) they had snowed |
| Pret. anterior | hubieron nevadothey had snowed |
| Imperativo | nievensnow! |
| Imper. negativo | no nievendon't snow |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.