English verb conjugation COULD LIAISE

Regular verb: liaise - liaised - liaised

Affirmation

Simple form

I could liaise
you could liaise
he could liaise
we could liaise
you could liaise
they could liaise

V-ing form

I could be liaising
you could be liaising
he could be liaising
we could be liaising
you could be liaising
they could be liaising

Perfect

I could have liaised
you could have liaised
he could have liaised
we could have liaised
you could have liaised
they could have liaised

V-ing perfect

I could have been liaising
you could have been liaising
he could have been liaising
we could have been liaising
you could have been liaising
they could have been liaising

Negation

Simple form

I couldn't liaise
you couldn't liaise
he couldn't liaise
we couldn't liaise
you couldn't liaise
they couldn't liaise

V-ing form

I couldn't be liaising
you couldn't be liaising
he couldn't be liaising
we couldn't be liaising
you couldn't be liaising
they couldn't be liaising

Perfect

I couldn't have liaised
you couldn't have liaised
he couldn't have liaised
we couldn't have liaised
you couldn't have liaised
they couldn't have liaised

V-ing perfect

I couldn't have been liaising
you couldn't have been liaising
he couldn't have been liaising
we couldn't have been liaising
you couldn't have been liaising
they couldn't have been liaising

Interrogative form

Simple form

could I liaise?
could you liaise?
could he liaise?
could we liaise?
could you liaise?
could they liaise?

V-ing form

could I be liaising?
could you be liaising?
could he be liaising?
could we be liaising?
could you be liaising?
could they be liaising?

Perfect

could I have liaised?
could you have liaised?
could he have liaised?
could we have liaised?
could you have liaised?
could they have liaised?

V-ing perfect

could I have been liaising?
could you have been liaising?
could he have been liaising?
could we have been liaising?
could you have been liaising?
could they have been liaising?

Interro-negative form

Simple form

couldn't I liaise?
couldn't you liaise?
couldn't he liaise?
couldn't we liaise?
couldn't you liaise?
couldn't they liaise?

V-ing form

couldn't I be liaising?
couldn't you be liaising?
couldn't he be liaising?
couldn't we be liaising?
couldn't you be liaising?
couldn't they be liaising?

Perfect

couldn't I have liaised?
couldn't you have liaised?
couldn't he have liaised?
couldn't we have liaised?
couldn't you have liaised?
couldn't they have liaised?

V-ing perfect

couldn't I have been liaising?
couldn't you have been liaising?
couldn't he have been liaising?
couldn't we have been liaising?
couldn't you have been liaising?
couldn't they have been liaising?

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