English verb conjugation COULD DESTABILIZE

Regular verb: destabilize - destabilized - destabilized

Affirmation

Simple form

I could destabilize
you could destabilize
he could destabilize
we could destabilize
you could destabilize
they could destabilize

V-ing form

I could be destabilizing
you could be destabilizing
he could be destabilizing
we could be destabilizing
you could be destabilizing
they could be destabilizing

Perfect

I could have destabilized
you could have destabilized
he could have destabilized
we could have destabilized
you could have destabilized
they could have destabilized

V-ing perfect

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

Negation

Simple form

I couldn't destabilize
you couldn't destabilize
he couldn't destabilize
we couldn't destabilize
you couldn't destabilize
they couldn't destabilize

V-ing form

I couldn't be destabilizing
you couldn't be destabilizing
he couldn't be destabilizing
we couldn't be destabilizing
you couldn't be destabilizing
they couldn't be destabilizing

Perfect

I couldn't have destabilized
you couldn't have destabilized
he couldn't have destabilized
we couldn't have destabilized
you couldn't have destabilized
they couldn't have destabilized

V-ing perfect

I couldn't have been destabilizing
you couldn't have been destabilizing
he couldn't have been destabilizing
we couldn't have been destabilizing
you couldn't have been destabilizing
they couldn't have been destabilizing

Interrogative form

Simple form

could I destabilize?
could you destabilize?
could he destabilize?
could we destabilize?
could you destabilize?
could they destabilize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I destabilize?
couldn't you destabilize?
couldn't he destabilize?
couldn't we destabilize?
couldn't you destabilize?
couldn't they destabilize?

V-ing form

couldn't I be destabilizing?
couldn't you be destabilizing?
couldn't he be destabilizing?
couldn't we be destabilizing?
couldn't you be destabilizing?
couldn't they be destabilizing?

Perfect

couldn't I have destabilized?
couldn't you have destabilized?
couldn't he have destabilized?
couldn't we have destabilized?
couldn't you have destabilized?
couldn't they have destabilized?

V-ing perfect

couldn't I have been destabilizing?
couldn't you have been destabilizing?
couldn't he have been destabilizing?
couldn't we have been destabilizing?
couldn't you have been destabilizing?
couldn't they have been destabilizing?

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