English verb conjugation COULD RAREFY

Regular verb: rarefy - rarefied - rarefied

Affirmation

Simple form

I could rarefy
you could rarefy
he could rarefy
we could rarefy
you could rarefy
they could rarefy

V-ing form

I could be rarefying
you could be rarefying
he could be rarefying
we could be rarefying
you could be rarefying
they could be rarefying

Perfect

I could have rarefied
you could have rarefied
he could have rarefied
we could have rarefied
you could have rarefied
they could have rarefied

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I rarefy?
could you rarefy?
could he rarefy?
could we rarefy?
could you rarefy?
could they rarefy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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