English verb conjugation COULD TAIL

Regular verb: tail - tailed - tailed

Affirmation

Simple form

I could tail
you could tail
she could tail
we could tail
you could tail
they could tail

V-ing form

I could be tailing
you could be tailing
she could be tailing
we could be tailing
you could be tailing
they could be tailing

Perfect

I could have tailed
you could have tailed
she could have tailed
we could have tailed
you could have tailed
they could have tailed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I tail?
could you tail?
could she tail?
could we tail?
could you tail?
could they tail?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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