English verb conjugation COULD FOSSILIZE

Regular verb: fossilize - fossilized - fossilized

Affirmation

Simple form

I could fossilize
you could fossilize
he could fossilize
we could fossilize
you could fossilize
they could fossilize

V-ing form

I could be fossilizing
you could be fossilizing
he could be fossilizing
we could be fossilizing
you could be fossilizing
they could be fossilizing

Perfect

I could have fossilized
you could have fossilized
he could have fossilized
we could have fossilized
you could have fossilized
they could have fossilized

V-ing perfect

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

Negation

Simple form

I could not fossilize
you could not fossilize
he could not fossilize
we could not fossilize
you could not fossilize
they could not fossilize

V-ing form

I could not be fossilizing
you could not be fossilizing
he could not be fossilizing
we could not be fossilizing
you could not be fossilizing
they could not be fossilizing

Perfect

I could not have fossilized
you could not have fossilized
he could not have fossilized
we could not have fossilized
you could not have fossilized
they could not have fossilized

V-ing perfect

I could not have been fossilizing
you could not have been fossilizing
he could not have been fossilizing
we could not have been fossilizing
you could not have been fossilizing
they could not have been fossilizing

Interrogative form

Simple form

could I fossilize?
could you fossilize?
could he fossilize?
could we fossilize?
could you fossilize?
could they fossilize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not fossilize?
could you not fossilize?
could he not fossilize?
could we not fossilize?
could you not fossilize?
could they not fossilize?

V-ing form

could I not be fossilizing?
could you not be fossilizing?
could he not be fossilizing?
could we not be fossilizing?
could you not be fossilizing?
could they not be fossilizing?

Perfect

could I not have fossilized?
could you not have fossilized?
could he not have fossilized?
could we not have fossilized?
could you not have fossilized?
could they not have fossilized?

V-ing perfect

could I not have been fossilizing?
could you not have been fossilizing?
could he not have been fossilizing?
could we not have been fossilizing?
could you not have been fossilizing?
could they not have been fossilizing?

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