English verb conjugation SHOULD UNDERPIN

Regular verb: underpin - underpinned - underpinned

Affirmation

Simple form

I'd underpin
you'd underpin
she'd underpin
we'd underpin
you'd underpin
they'd underpin

V-ing form

I'd be underpinning
you'd be underpinning
she'd be underpinning
we'd be underpinning
you'd be underpinning
they'd be underpinning

Perfect

I should've underpinned
you should've underpinned
she should've underpinned
we should've underpinned
you should've underpinned
they should've underpinned

V-ing perfect

I should've been underpinning
you should've been underpinning
she should've been underpinning
we should've been underpinning
you should've been underpinning
they should've been underpinning

Negation

Simple form

I shouldn't underpin
you shouldn't underpin
she shouldn't underpin
we shouldn't underpin
you shouldn't underpin
they shouldn't underpin

V-ing form

I shouldn't be underpinning
you shouldn't be underpinning
she shouldn't be underpinning
we shouldn't be underpinning
you shouldn't be underpinning
they shouldn't be underpinning

Perfect

I shouldn't have underpinned
you shouldn't have underpinned
she shouldn't have underpinned
we shouldn't have underpinned
you shouldn't have underpinned
they shouldn't have underpinned

V-ing perfect

I shouldn't have been underpinning
you shouldn't have been underpinning
she shouldn't have been underpinning
we shouldn't have been underpinning
you shouldn't have been underpinning
they shouldn't have been underpinning

Interrogative form

Simple form

should I underpin?
should you underpin?
should she underpin?
should we underpin?
should you underpin?
should they underpin?

V-ing form

should I be underpinning?
should you be underpinning?
should she be underpinning?
should we be underpinning?
should you be underpinning?
should they be underpinning?

Perfect

should I have underpinned?
should you have underpinned?
should she have underpinned?
should we have underpinned?
should you have underpinned?
should they have underpinned?

V-ing perfect

should I have been underpinning?
should you have been underpinning?
should she have been underpinning?
should we have been underpinning?
should you have been underpinning?
should they have been underpinning?

Interro-negative form

Simple form

shouldn't I underpin?
shouldn't you underpin?
shouldn't she underpin?
shouldn't we underpin?
shouldn't you underpin?
shouldn't they underpin?

V-ing form

shouldn't I be underpinning?
shouldn't you be underpinning?
shouldn't she be underpinning?
shouldn't we be underpinning?
shouldn't you be underpinning?
shouldn't they be underpinning?

Perfect

shouldn't I have underpinned?
shouldn't you have underpinned?
shouldn't she have underpinned?
shouldn't we have underpinned?
shouldn't you have underpinned?
shouldn't they have underpinned?

V-ing perfect

shouldn't I have been underpinning?
shouldn't you have been underpinning?
shouldn't she have been underpinning?
shouldn't we have been underpinning?
shouldn't you have been underpinning?
shouldn't they have been underpinning?

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