Mastering English Grammar: Tenses and Structures
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English Verb Tenses and Usage
- Present Simple (juego): -s/do. Keywords: always, routines, schedules.
- Present Continuous (estoy jugando): am/is/are + -ing. Keywords: now, at the moment, this week.
- Past Simple (jugué): -ed / 2nd column / did. Keywords: when, last, yesterday, in 1999.
- Past Continuous (estaba jugando): was/were + -ing. Keywords: while, then.
- Present Perfect Simple (he jugado): have/has + -ed / 3rd column. Keywords: just, since, for.
- Present Perfect Continuous (he estado jugando): have/has + been + -ing. Keywords: since, all day, how long.
- Past Perfect Continuous (había estado jugando): had + been + -ing. Keywords: just, ever, never, since.
- Past Perfect Simple (había jugado): had + -ed / 3rd column. Keywords: by, yet, since, ever.
- Future Simple (jugaré): will / won't. Keywords: promise, think, offer, believe.
- Future Continuous (estaré jugando): will + be + -ing. Keywords: at this moment, in months.
- Future Perfect (habré jugado): will + have + -ed / 3rd column. Keywords: by...
- Be going to (yo voy a...): am/is/are + going to + verb. Keywords: next..., be careful, watch out.
Passive Voice Transformations
- Present Simple: (s/es, don't/doesn't) → am/is/are + 3rd column / -ed
- Past Simple: (ed / 2nd column, did) → was/were + 3rd column / -ed
- Present Continuous: (am/is/are + -ing) → am/is/are + being + 3rd column / -ed
- Past Continuous: (was/were + -ing) → was/were + being + 3rd column / -ed
- Present Perfect: (have/has + -ed / 3rd column) → have/has + been + 3rd column / -ed
- Past Perfect: (had + -ed / 3rd column) → had + been + 3rd column / -ed
- Future Simple: (will/won't) → will + be + 3rd column / -ed
- Be going to: am/is/are + going to be + 3rd column / -ed
- Future Perfect: (will + have + -ed / 3rd column) → will + have + been + 3rd column / -ed
- Modals: (modal + verb) → modal + be + 3rd column / -ed
- Perfect Modals: (must have + 3rd column / -ed) → modal + have + been + 3rd column / -ed
- Have to: (have/has to + verb) → have/has to be + 3rd column / -ed
Reported Speech Backshifting
- Present Simple (es/s, don't/doesn't) → Past Simple (ed / 2nd column, did)
- Past Simple (ed / 2nd column, did) → Past Perfect (had + -ed / 3rd column)
- Present Continuous (am/is/are + -ing) → Past Continuous (was/were + -ing)
- Past Continuous (was/were + -ing) → Past Perfect Continuous (had + been + -ing)
- Future Simple (will/won't) → Would + infinitive
- Be going to → Was/were going to + infinitive
- Present Perfect (have/has + -ed / 3rd column) → Past Perfect (had + -ed / 3rd column)
- Past Perfect (had + -ed / 3rd column) → Past Perfect (had + -ed / 3rd column)
- Present Perfect Continuous (have/has + been + -ing) → Past Perfect Continuous (had + been + -ing)
- Past Perfect Continuous (had + been + -ing) → Past Perfect Continuous (had + been + -ing)
- Future Continuous (will/won't + be + -ing) → Would be + -ing
- Future Perfect (will + have + -ed / 3rd column) → Would have + 3rd column / -ed
Wish Clauses and Regrets
- Subject + wish + subject + Past Simple (ed / 2nd column / did): Se usa para deseos en el presente.
- Subject + wish + subject + Past Perfect (had + -ed / 3rd column): Se usa para arrepentimientos del pasado.
Conditional Sentences
- Type 0 (Innegables): Subject + (verb + s/es) | Subject + (verb + s/es)
- Type 1 (Probables): Subject + (verb + s/es) | will + verb
- Type 2 (Improbables): Subject + (ed / 2nd column / did) | would + verb
- Type 3 (Pasadas/Imposibles): Subject + (had + -ed / 3rd column) | would + have + 3rd column