English verb conjugation COULD TWINKLE

Regular verb: twinkle - twinkled - twinkled

Affirmation

Simple form

I could twinkle
you could twinkle
she could twinkle
we could twinkle
you could twinkle
they could twinkle

V-ing form

I could be twinkling
you could be twinkling
she could be twinkling
we could be twinkling
you could be twinkling
they could be twinkling

Perfect

I could have twinkled
you could have twinkled
she could have twinkled
we could have twinkled
you could have twinkled
they could have twinkled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I twinkle?
could you twinkle?
could she twinkle?
could we twinkle?
could you twinkle?
could they twinkle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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