English verb conjugation COULD CONTAMINATE

Regular verb: contaminate - contaminated - contaminated

Affirmation

Simple form

I could contaminate
you could contaminate
he could contaminate
we could contaminate
you could contaminate
they could contaminate

V-ing form

I could be contaminating
you could be contaminating
he could be contaminating
we could be contaminating
you could be contaminating
they could be contaminating

Perfect

I could have contaminated
you could have contaminated
he could have contaminated
we could have contaminated
you could have contaminated
they could have contaminated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I contaminate?
could you contaminate?
could he contaminate?
could we contaminate?
could you contaminate?
could they contaminate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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