English verb conjugation COULD WATERPROOF

Regular verb: waterproof - waterproofed - waterproofed

Affirmation

Simple form

I could waterproof
you could waterproof
he could waterproof
we could waterproof
you could waterproof
they could waterproof

V-ing form

I could be waterproofing
you could be waterproofing
he could be waterproofing
we could be waterproofing
you could be waterproofing
they could be waterproofing

Perfect

I could have waterproofed
you could have waterproofed
he could have waterproofed
we could have waterproofed
you could have waterproofed
they could have waterproofed

V-ing perfect

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

Negation

Simple form

I could not waterproof
you could not waterproof
he could not waterproof
we could not waterproof
you could not waterproof
they could not waterproof

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I waterproof?
could you waterproof?
could he waterproof?
could we waterproof?
could you waterproof?
could they waterproof?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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