English verb conjugation COULD SOUR

Regular verb: sour - soured - soured

Affirmation

Simple form

I could sour
you could sour
he could sour
we could sour
you could sour
they could sour

V-ing form

I could be souring
you could be souring
he could be souring
we could be souring
you could be souring
they could be souring

Perfect

I could have soured
you could have soured
he could have soured
we could have soured
you could have soured
they could have soured

V-ing perfect

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

Negation

Simple form

I could not sour
you could not sour
he could not sour
we could not sour
you could not sour
they could not sour

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sour?
could you sour?
could he sour?
could we sour?
could you sour?
could they sour?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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