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 couldn't topple
you couldn't topple
he 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
he 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
he 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
he 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 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

couldn't I topple?
couldn't you topple?
couldn't he 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 he 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 he 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 he 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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