English verb conjugation COULD KERN

Regular verb: kern - kerned - kerned

Affirmation

Simple form

I could kern
you could kern
he could kern
we could kern
you could kern
they could kern

V-ing form

I could be kerning
you could be kerning
he could be kerning
we could be kerning
you could be kerning
they could be kerning

Perfect

I could have kerned
you could have kerned
he could have kerned
we could have kerned
you could have kerned
they could have kerned

V-ing perfect

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

Negation

Simple form

I could not kern
you could not kern
he could not kern
we could not kern
you could not kern
they could not kern

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I kern?
could you kern?
could he kern?
could we kern?
could you kern?
could they kern?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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