English verb conjugation COULD INTERLEAVE

Regular verb: interleave - interleaved - interleaved

Affirmation

Simple form

I could interleave
you could interleave
he could interleave
we could interleave
you could interleave
they could interleave

V-ing form

I could be interleaving
you could be interleaving
he could be interleaving
we could be interleaving
you could be interleaving
they could be interleaving

Perfect

I could have interleaved
you could have interleaved
he could have interleaved
we could have interleaved
you could have interleaved
they could have interleaved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I interleave?
could you interleave?
could he interleave?
could we interleave?
could you interleave?
could they interleave?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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