Conjugation of "to flatten" (flatten – flattened – flattened) – All Tenses

Infinitiveflatten

Past simpleflattened

Past participleflattened

-ing formflattening

Full conjugation of the English verb to flatten (past simple flattened, past participle flattened): present simple and continuous, past simple and continuous, present perfect, past perfect, future, conditional, subjunctive and imperative, with all persons.

Indicative

Present simple

I flatten

you flatten

he/she/it flattens

we flatten

you flatten

they flatten

Present continuous

I am flattening

you are flattening

he/she/it is flattening

we are flattening

you are flattening

they are flattening

Present perfect

I have flattened

you have flattened

he/she/it has flattened

we have flattened

you have flattened

they have flattened

Present perfect continuous

I have been flattening

you have been flattening

he/she/it has been flattening

we have been flattening

you have been flattening

they have been flattening

Past simple

I flattened

you flattened

he/she/it flattened

we flattened

you flattened

they flattened

Past continuous

I was flattening

you were flattening

he/she/it was flattening

we were flattening

you were flattening

they were flattening

Past perfect

I had flattened

you had flattened

he/she/it had flattened

we had flattened

you had flattened

they had flattened

Past perfect continuous

I had been flattening

you had been flattening

he/she/it had been flattening

we had been flattening

you had been flattening

they had been flattening

Future simple

I will flatten

you will flatten

he/she/it will flatten

we will flatten

you will flatten

they will flatten

Future continuous

I will be flattening

you will be flattening

he/she/it will be flattening

we will be flattening

you will be flattening

they will be flattening

Future perfect

I will have flattened

you will have flattened

he/she/it will have flattened

we will have flattened

you will have flattened

they will have flattened

Future perfect continuous

I will have been flattening

you will have been flattening

he/she/it will have been flattening

we will have been flattening

you will have been flattening

they will have been flattening

Conditional

Present

I would flatten

you would flatten

he/she/it would flatten

we would flatten

you would flatten

they would flatten

Present continuous

I would be flattening

you would be flattening

he/she/it would be flattening

we would be flattening

you would be flattening

they would be flattening

Perfect

I would have flattened

you would have flattened

he/she/it would have flattened

we would have flattened

you would have flattened

they would have flattened

Perfect continuous

I would have been flattening

you would have been flattening

he/she/it would have been flattening

we would have been flattening

you would have been flattening

they would have been flattening

Subjunctive

Present

that I flatten

that you flatten

that he/she/it flatten

that we flatten

that you flatten

that they flatten

Past

if I flattened

if you flattened

if he/she/it flattened

if we flattened

if you flattened

if they flattened

Imperative

Affirmative

you flatten

we let's flatten

Negative

you don't flatten

we let's not flatten

Non-finite forms

Infinitive

to flatten

Perfect infinitive

to have flattened

Present participle / gerund

flattening

Past participle

flattened

Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.