English verb conjugation COULD TREPAN

Regular verb: trepan - trepanned - trepanned

Affirmation

Simple form

I could trepan
you could trepan
she could trepan
we could trepan
you could trepan
they could trepan

V-ing form

I could be trepanning
you could be trepanning
she could be trepanning
we could be trepanning
you could be trepanning
they could be trepanning

Perfect

I could have trepanned
you could have trepanned
she could have trepanned
we could have trepanned
you could have trepanned
they could have trepanned

V-ing perfect

I could have been trepanning
you could have been trepanning
she could have been trepanning
we could have been trepanning
you could have been trepanning
they could have been trepanning

Negation

Simple form

I couldn't trepan
you couldn't trepan
she couldn't trepan
we couldn't trepan
you couldn't trepan
they couldn't trepan

V-ing form

I couldn't be trepanning
you couldn't be trepanning
she couldn't be trepanning
we couldn't be trepanning
you couldn't be trepanning
they couldn't be trepanning

Perfect

I couldn't have trepanned
you couldn't have trepanned
she couldn't have trepanned
we couldn't have trepanned
you couldn't have trepanned
they couldn't have trepanned

V-ing perfect

I couldn't have been trepanning
you couldn't have been trepanning
she couldn't have been trepanning
we couldn't have been trepanning
you couldn't have been trepanning
they couldn't have been trepanning

Interrogative form

Simple form

could I trepan?
could you trepan?
could she trepan?
could we trepan?
could you trepan?
could they trepan?

V-ing form

could I be trepanning?
could you be trepanning?
could she be trepanning?
could we be trepanning?
could you be trepanning?
could they be trepanning?

Perfect

could I have trepanned?
could you have trepanned?
could she have trepanned?
could we have trepanned?
could you have trepanned?
could they have trepanned?

V-ing perfect

could I have been trepanning?
could you have been trepanning?
could she have been trepanning?
could we have been trepanning?
could you have been trepanning?
could they have been trepanning?

Interro-negative form

Simple form

couldn't I trepan?
couldn't you trepan?
couldn't she trepan?
couldn't we trepan?
couldn't you trepan?
couldn't they trepan?

V-ing form

couldn't I be trepanning?
couldn't you be trepanning?
couldn't she be trepanning?
couldn't we be trepanning?
couldn't you be trepanning?
couldn't they be trepanning?

Perfect

couldn't I have trepanned?
couldn't you have trepanned?
couldn't she have trepanned?
couldn't we have trepanned?
couldn't you have trepanned?
couldn't they have trepanned?

V-ing perfect

couldn't I have been trepanning?
couldn't you have been trepanning?
couldn't she have been trepanning?
couldn't we have been trepanning?
couldn't you have been trepanning?
couldn't they have been trepanning?

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