English verb conjugation COULD OVERTURN

Regular verb: overturn - overturned - overturned

Affirmation

Simple form

I could overturn
you could overturn
she could overturn
we could overturn
you could overturn
they could overturn

V-ing form

I could be overturning
you could be overturning
she could be overturning
we could be overturning
you could be overturning
they could be overturning

Perfect

I could have overturned
you could have overturned
she could have overturned
we could have overturned
you could have overturned
they could have overturned

V-ing perfect

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

Negation

Simple form

I could not overturn
you could not overturn
she could not overturn
we could not overturn
you could not overturn
they could not overturn

V-ing form

I could not be overturning
you could not be overturning
she could not be overturning
we could not be overturning
you could not be overturning
they could not be overturning

Perfect

I could not have overturned
you could not have overturned
she could not have overturned
we could not have overturned
you could not have overturned
they could not have overturned

V-ing perfect

I could not have been overturning
you could not have been overturning
she could not have been overturning
we could not have been overturning
you could not have been overturning
they could not have been overturning

Interrogative form

Simple form

could I overturn?
could you overturn?
could she overturn?
could we overturn?
could you overturn?
could they overturn?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not overturn?
could you not overturn?
could she not overturn?
could we not overturn?
could you not overturn?
could they not overturn?

V-ing form

could I not be overturning?
could you not be overturning?
could she not be overturning?
could we not be overturning?
could you not be overturning?
could they not be overturning?

Perfect

could I not have overturned?
could you not have overturned?
could she not have overturned?
could we not have overturned?
could you not have overturned?
could they not have overturned?

V-ing perfect

could I not have been overturning?
could you not have been overturning?
could she not have been overturning?
could we not have been overturning?
could you not have been overturning?
could they not have been overturning?

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