Los 12 tiempos verbales

S + V(s/es) | S + do/does + not + V | Do/Does + S + V?

S + am/is/are + V-ing | S + am/is/are + not + V-ing | Am/Is/Are + S + V-ing?

S + V(ed/2nd form) | S + did + not + V | Did + S + V?

S + was/were + V-ing | S + was/were + not + V-ing | Was/Were + S + V-ing?

S + have/has + past participle | S + haven't/hasn't + past participle | Have/Has + S + past participle?

S + have/has + been + V-ing | S + haven't/hasn't + been + V-ing | Have/Has + S + been + V-ing?

S + had + past participle | S + hadn't + past participle | Had + S + past participle?

S + had + been + V-ing | S + hadn't + been + V-ing | Had + S + been + V-ing?

S + will + V | S + will not (won't) + V | Will + S + V?

S + am/is/are + going to + V | S + am/is/are + not + going to + V | Am/Is/Are + S + going to + V?

S + will + be + V-ing | S + won't + be + V-ing | Will + S + be + V-ing?

S + will + have + past participle | S + won't + have + past participle | Will + S + have + past participle?