English verb conjugation COULD SENTINEL

Regular verb: sentinel - sentineled - sentineled

Affirmation

Simple form

I could sentinel
you could sentinel
he could sentinel
we could sentinel
you could sentinel
they could sentinel

V-ing form

I could be sentineling
you could be sentineling
he could be sentineling
we could be sentineling
you could be sentineling
they could be sentineling

Perfect

I could have sentineled
you could have sentineled
he could have sentineled
we could have sentineled
you could have sentineled
they could have sentineled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sentinel?
could you sentinel?
could he sentinel?
could we sentinel?
could you sentinel?
could they sentinel?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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