English verb conjugation COULD RAIL

Regular verb: rail - railed - railed

Affirmation

Simple form

I could rail
you could rail
he could rail
we could rail
you could rail
they could rail

V-ing form

I could be railing
you could be railing
he could be railing
we could be railing
you could be railing
they could be railing

Perfect

I could have railed
you could have railed
he could have railed
we could have railed
you could have railed
they could have railed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I rail?
could you rail?
could he rail?
could we rail?
could you rail?
could they rail?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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