English verb conjugation COULD DEVITALIZE

Regular verb: devitalize - devitalized - devitalized

Affirmation

Simple form

I could devitalize
you could devitalize
he could devitalize
we could devitalize
you could devitalize
they could devitalize

V-ing form

I could be devitalizing
you could be devitalizing
he could be devitalizing
we could be devitalizing
you could be devitalizing
they could be devitalizing

Perfect

I could have devitalized
you could have devitalized
he could have devitalized
we could have devitalized
you could have devitalized
they could have devitalized

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I devitalize?
could you devitalize?
could he devitalize?
could we devitalize?
could you devitalize?
could they devitalize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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