English verb conjugation COULD FORTIFY

Regular verb: fortify - fortified - fortified

Affirmation

Simple form

I could fortify
you could fortify
he could fortify
we could fortify
you could fortify
they could fortify

V-ing form

I could be fortifying
you could be fortifying
he could be fortifying
we could be fortifying
you could be fortifying
they could be fortifying

Perfect

I could have fortified
you could have fortified
he could have fortified
we could have fortified
you could have fortified
they could have fortified

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I fortify?
could you fortify?
could he fortify?
could we fortify?
could you fortify?
could they fortify?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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