English verb conjugation COULD ULCERATE

Regular verb: ulcerate - ulcerated - ulcerated

Affirmation

Simple form

I could ulcerate
you could ulcerate
he could ulcerate
we could ulcerate
you could ulcerate
they could ulcerate

V-ing form

I could be ulcerating
you could be ulcerating
he could be ulcerating
we could be ulcerating
you could be ulcerating
they could be ulcerating

Perfect

I could have ulcerated
you could have ulcerated
he could have ulcerated
we could have ulcerated
you could have ulcerated
they could have ulcerated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I ulcerate?
could you ulcerate?
could he ulcerate?
could we ulcerate?
could you ulcerate?
could they ulcerate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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