English verb conjugation COULD TOPPLE

Regular verb: topple - toppled - toppled

Affirmation

Simple form

I could topple
you could topple
she could topple
we could topple
you could topple
they could topple

V-ing form

I could be toppling
you could be toppling
she could be toppling
we could be toppling
you could be toppling
they could be toppling

Perfect

I could have toppled
you could have toppled
she 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
she could have been toppling
we could have been toppling
you could have been toppling
they could have been toppling

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I topple?
could you topple?
could she topple?
could we topple?
could you topple?
could they topple?

V-ing form

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

Perfect

could I have toppled?
could you have toppled?
could she 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 she have been toppling?
could we have been toppling?
could you have been toppling?
could they have been toppling?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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