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 couldn't tire
you couldn't tire
he couldn't tire
we couldn't tire
you couldn't tire
they couldn't tire

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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