English verb conjugation COULD STAB

Regular verb: stab - stabbed - stabbed

Affirmation

Simple form

I could stab
you could stab
he could stab
we could stab
you could stab
they could stab

V-ing form

I could be stabbing
you could be stabbing
he could be stabbing
we could be stabbing
you could be stabbing
they could be stabbing

Perfect

I could have stabbed
you could have stabbed
he could have stabbed
we could have stabbed
you could have stabbed
they could have stabbed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I stab?
could you stab?
could he stab?
could we stab?
could you stab?
could they stab?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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