Conjugation and declension of "sustain" in English

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sustain, Verb
sustained / sustained / sustaining / sustains
sustain, Noun
pl.sustains

Conjugation of the verb sustain[səsˈteɪn], regular

All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I sustain
you sustain
he/she/it sustains
we sustain
you sustain
they sustain

Present Continuous

I am sustaining
you are sustaining
he/she/it is sustaining
we are sustaining
you are sustaining
they are sustaining

Present Perfect

I have sustained
you have sustained
he/she/it has sustained
we have sustained
you have sustained
they have sustained

Present Perfect Continuous

I have been sustaining
you have been sustaining
he/she/it has been sustaining
we have been sustaining
you have been sustaining
they have been sustaining

Past Indefinite

I sustained
you sustained
he/she/it sustained
we sustained
you sustained
they sustained

Past Continuous

I was sustaining
you were sustaining
he/she/it was sustaining
we were sustaining
you were sustaining
they were sustaining

Past Perfect

I had sustained
you had sustained
he/she/it had sustained
we had sustained
you had sustained
they had sustained

Past Perfect Continuous

I had been sustaining
you had been sustaining
he/she/it had been sustaining
we had been sustaining
you had been sustaining
they had been sustaining

Future Indefinite

I will sustain
you will sustain
he/she/it will sustain
we will sustain
you will sustain
they will sustain

Future Continuous

I will be sustaining
you will be sustaining
he/she/it will be sustaining
we will be sustaining
you will be sustaining
they will be sustaining

Future Perfect

I will have sustained
you will have sustained
he/she/it will have sustained
we will have sustained
you will have sustained
they will have sustained

Future Perfect Continuous

I will have been sustaining
you will have been sustaining
he/she/it will have been sustaining
we will have been sustaining
you will have been sustaining
they will have been sustaining

Conditional

Conditional Present

I would sustain
you would sustain
he/she/it would sustain
we would sustain
you would sustain
they would sustain

Conditional Present Continuous

I would be sustaining
you would be sustaining
he/she/it would be sustaining
we would be sustaining
you would be sustaining
they would be sustaining

Conditional Perfect

I would have sustained
you would have sustained
he/she/it would have sustained
we would have sustained
you would have sustained
they would have sustained

Conditional Perfect Continuous

I would have been sustaining
you would have been sustaining
he/she/it would have been sustaining
we would have been sustaining
you would have been sustaining
they would have been sustaining

Participles

Present

sustaining

Past

sustained

Infinitives

Infinitives

to sustain
to have sustained
to be sustaining
to have been sustaining

Declension of the noun sustain[səsˈteɪn]pl.sustains

Singular

Plural

Singular

Common case

sustain

sustains

Possessive case

sustain's

sustains'

Plural