English verb conjugation
TO UNDERPERFORM

Regular verb: underperform - underperformed - underperformed

Indicative

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

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I underperform? wouldn't you underperform? wouldn't he underperform? wouldn't we underperform? wouldn't you underperform? wouldn't they underperform?	wouldn't I be underperforming? wouldn't you be underperforming? wouldn't he be underperforming? wouldn't we be underperforming? wouldn't you be underperforming? wouldn't they be underperforming?	wouldn't I have underperformed? wouldn't you have underperformed? wouldn't he have underperformed? wouldn't we have underperformed? wouldn't you have underperformed? wouldn't they have underperformed?	wouldn't I have been underperforming? wouldn't you have been underperforming? wouldn't he have been underperforming? wouldn't we have been underperforming? wouldn't you have been underperforming? wouldn't they have been underperforming?

Infinitive

Imperative

Infinitive		Imperative
to underperform		- - -

Participle

Present	Past
underperforming	underperformed