English verb conjugation COULD TIRE

Regular verb: tire - tired - tired


Affirmation

Simple form

I could tire
you could tire
he could tire
we could tire
you could tire
they could tire

V-ing form

I could be tiring
you could be tiring
he could be tiring
we could be tiring
you could be tiring
they could be tiring

Perfect

I could have tired
you could have tired
he could have tired
we could have tired
you could have tired
they could have tired

V-ing perfect

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

Negation

Simple form

I could not tire
you could not tire
he could not tire
we could not tire
you could not tire
they could not tire

V-ing form

I could not be tiring
you could not be tiring
he could not be tiring
we could not be tiring
you could not be tiring
they could not be tiring

Perfect

I could not have tired
you could not have tired
he could not have tired
we could not have tired
you could not have tired
they could not have tired

V-ing perfect

I could not have been tiring
you could not have been tiring
he could not have been tiring
we could not have been tiring
you could not have been tiring
they could not have been tiring

Interrogative form

Simple form

could I tire?
could you tire?
could he tire?
could we tire?
could you tire?
could they tire?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not tire?
could you not tire?
could he not tire?
could we not tire?
could you not tire?
could they not tire?

V-ing form

could I not be tiring?
could you not be tiring?
could he not be tiring?
could we not be tiring?
could you not be tiring?
could they not be tiring?

Perfect

could I not have tired?
could you not have tired?
could he not have tired?
could we not have tired?
could you not have tired?
could they not have tired?

V-ing perfect

could I not have been tiring?
could you not have been tiring?
could he not have been tiring?
could we not have been tiring?
could you not have been tiring?
could they not have been tiring?