English verb conjugation COULD TOPPLE

Regular verb: topple - toppled - toppled

Affirmation

Simple form

I could topple
you could topple
he could topple
we could topple
you could topple
they could topple

V-ing form

I could be toppling
you could be toppling
he could be toppling
we could be toppling
you could be toppling
they could be toppling

Perfect

I could have toppled
you could have toppled
he could have toppled
we could have toppled
you could have toppled
they could have toppled

V-ing perfect

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

Negation

Simple form

I could not topple
you could not topple
he could not topple
we could not topple
you could not topple
they could not topple

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I topple?
could you topple?
could he topple?
could we topple?
could you topple?
could they topple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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