English verb conjugation COULD RUST

Regular verb: rust - rusted - rusted

Affirmation

Simple form

I could rust
you could rust
he could rust
we could rust
you could rust
they could rust

V-ing form

I could be rusting
you could be rusting
he could be rusting
we could be rusting
you could be rusting
they could be rusting

Perfect

I could have rusted
you could have rusted
he could have rusted
we could have rusted
you could have rusted
they could have rusted

V-ing perfect

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

Negation

Simple form

I could not rust
you could not rust
he could not rust
we could not rust
you could not rust
they could not rust

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I rust?
could you rust?
could he rust?
could we rust?
could you rust?
could they rust?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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