English verb conjugation COULD SWIM

Irregular verb: swim - swam - swum

Affirmation

Simple form

I could swim
you could swim
he could swim
we could swim
you could swim
they could swim

V-ing form

I could be swimming
you could be swimming
he could be swimming
we could be swimming
you could be swimming
they could be swimming

Perfect

I could have swum
you could have swum
he could have swum
we could have swum
you could have swum
they could have swum

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I swim?
could you swim?
could he swim?
could we swim?
could you swim?
could they swim?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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