English verb conjugation
TO SUSTAIN

Regular verb: sustain - sustained - sustained

Indicative

Present	Present continuous	Preterite	Preterite continuous
don't I sustain? don't you sustain? doesn't he sustain? don't we sustain? don't you sustain? don't they sustain?	am I not sustaining? aren't you sustaining? isn't he sustaining? aren't we sustaining? aren't you sustaining? aren't they sustaining?	didn't I sustain? didn't you sustain? didn't he sustain? didn't we sustain? didn't you sustain? didn't they sustain?	wasn't I sustaining? weren't you sustaining? wasn't he sustaining? weren't we sustaining? weren't you sustaining? weren't they sustaining?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
haven't I sustained? haven't you sustained? hasn't he sustained? haven't we sustained? haven't you sustained? haven't they sustained?	haven't I been sustaining? haven't you been sustaining? hasn't he been sustaining? haven't we been sustaining? haven't you been sustaining? haven't they been sustaining?	hadn't I sustained? hadn't you sustained? hadn't he sustained? hadn't we sustained? hadn't you sustained? hadn't they sustained?	hadn't I been sustaining? hadn't you been sustaining? hadn't he been sustaining? hadn't we been sustaining? hadn't you been sustaining? hadn't they been sustaining?
Future	Future continuous	Future perfect	Future perfect continuous
won't I sustain? won't you sustain? won't he sustain? won't we sustain? won't you sustain? won't they sustain?	won't I be sustaining? won't you be sustaining? won't he be sustaining? won't we be sustaining? won't you be sustaining? won't they be sustaining?	won't I have sustained? won't you have sustained? won't he have sustained? won't we have sustained? won't you have sustained? won't they have sustained?	won't I have been sustaining? won't you have been sustaining? won't he have been sustaining? won't we have been sustaining? won't you have been sustaining? won't they have been sustaining?

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I sustain? wouldn't you sustain? wouldn't he sustain? wouldn't we sustain? wouldn't you sustain? wouldn't they sustain?	wouldn't I be sustaining? wouldn't you be sustaining? wouldn't he be sustaining? wouldn't we be sustaining? wouldn't you be sustaining? wouldn't they be sustaining?	wouldn't I have sustained? wouldn't you have sustained? wouldn't he have sustained? wouldn't we have sustained? wouldn't you have sustained? wouldn't they have sustained?	wouldn't I have been sustaining? wouldn't you have been sustaining? wouldn't he have been sustaining? wouldn't we have been sustaining? wouldn't you have been sustaining? wouldn't they have been sustaining?

Infinitive

Imperative

Infinitive		Imperative
to sustain		- - -

Participle

Present	Past
sustaining	sustained