English verb conjugation COULD SWAB

Regular verb: swab - swabed - swabed

Affirmation

Simple form

I could swab
you could swab
he could swab
we could swab
you could swab
they could swab

V-ing form

I could be swabing
you could be swabing
he could be swabing
we could be swabing
you could be swabing
they could be swabing

Perfect

I could have swabed
you could have swabed
he could have swabed
we could have swabed
you could have swabed
they could have swabed

V-ing perfect

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

Negation

Simple form

I could not swab
you could not swab
he could not swab
we could not swab
you could not swab
they could not swab

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I swab?
could you swab?
could he swab?
could we swab?
could you swab?
could they swab?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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