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 couldn't swab
you couldn't swab
he couldn't swab
we couldn't swab
you couldn't swab
they couldn't swab

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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