English verb conjugation COULD TREE

Regular verb: tree - treed - treed

Affirmation

Simple form

I could tree
you could tree
he could tree
we could tree
you could tree
they could tree

V-ing form

I could be treeing
you could be treeing
he could be treeing
we could be treeing
you could be treeing
they could be treeing

Perfect

I could have treed
you could have treed
he could have treed
we could have treed
you could have treed
they could have treed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I tree?
could you tree?
could he tree?
could we tree?
could you tree?
could they tree?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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