English verb conjugation COULD TRANQUILIZE

Regular verb: tranquilize - tranquilized - tranquilized

Affirmation

Simple form

I could tranquilize
you could tranquilize
he could tranquilize
we could tranquilize
you could tranquilize
they could tranquilize

V-ing form

I could be tranquilizing
you could be tranquilizing
he could be tranquilizing
we could be tranquilizing
you could be tranquilizing
they could be tranquilizing

Perfect

I could have tranquilized
you could have tranquilized
he could have tranquilized
we could have tranquilized
you could have tranquilized
they could have tranquilized

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I tranquilize?
could you tranquilize?
could he tranquilize?
could we tranquilize?
could you tranquilize?
could they tranquilize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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