English verb conjugation SHOULD UNDERUSE

Regular verb: underuse - underused - underused

Affirmation

Simple form

I'd underuse
you'd underuse
he'd underuse
we'd underuse
you'd underuse
they'd underuse

V-ing form

I'd be underusing
you'd be underusing
he'd be underusing
we'd be underusing
you'd be underusing
they'd be underusing

Perfect

I should've underused
you should've underused
he should've underused
we should've underused
you should've underused
they should've underused

V-ing perfect

I should've been underusing
you should've been underusing
he should've been underusing
we should've been underusing
you should've been underusing
they should've been underusing

Negation

Simple form

I shouldn't underuse
you shouldn't underuse
he shouldn't underuse
we shouldn't underuse
you shouldn't underuse
they shouldn't underuse

V-ing form

I shouldn't be underusing
you shouldn't be underusing
he shouldn't be underusing
we shouldn't be underusing
you shouldn't be underusing
they shouldn't be underusing

Perfect

I shouldn't have underused
you shouldn't have underused
he shouldn't have underused
we shouldn't have underused
you shouldn't have underused
they shouldn't have underused

V-ing perfect

I shouldn't have been underusing
you shouldn't have been underusing
he shouldn't have been underusing
we shouldn't have been underusing
you shouldn't have been underusing
they shouldn't have been underusing

Interrogative form

Simple form

should I underuse?
should you underuse?
should he underuse?
should we underuse?
should you underuse?
should they underuse?

V-ing form

should I be underusing?
should you be underusing?
should he be underusing?
should we be underusing?
should you be underusing?
should they be underusing?

Perfect

should I have underused?
should you have underused?
should he have underused?
should we have underused?
should you have underused?
should they have underused?

V-ing perfect

should I have been underusing?
should you have been underusing?
should he have been underusing?
should we have been underusing?
should you have been underusing?
should they have been underusing?

Interro-negative form

Simple form

shouldn't I underuse?
shouldn't you underuse?
shouldn't he underuse?
shouldn't we underuse?
shouldn't you underuse?
shouldn't they underuse?

V-ing form

shouldn't I be underusing?
shouldn't you be underusing?
shouldn't he be underusing?
shouldn't we be underusing?
shouldn't you be underusing?
shouldn't they be underusing?

Perfect

shouldn't I have underused?
shouldn't you have underused?
shouldn't he have underused?
shouldn't we have underused?
shouldn't you have underused?
shouldn't they have underused?

V-ing perfect

shouldn't I have been underusing?
shouldn't you have been underusing?
shouldn't he have been underusing?
shouldn't we have been underusing?
shouldn't you have been underusing?
shouldn't they have been underusing?

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