English verb conjugation COULD WINTERISE

Regular verb: winterise - winterised - winterised

Affirmation

Simple form

I could winterise
you could winterise
he could winterise
we could winterise
you could winterise
they could winterise

V-ing form

I could be winterising
you could be winterising
he could be winterising
we could be winterising
you could be winterising
they could be winterising

Perfect

I could have winterised
you could have winterised
he could have winterised
we could have winterised
you could have winterised
they could have winterised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I winterise?
could you winterise?
could he winterise?
could we winterise?
could you winterise?
could they winterise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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