English verb conjugation
COULD SAW

Irregular verb: saw - sawed - sawed, sawn

Affirmation

Simple form	V-ing form
I could saw you could saw he could saw we could saw you could saw they could saw	I could be sawing you could be sawing he could be sawing we could be sawing you could be sawing they could be sawing
Perfect	V-ing perfect
I could have sawed, sawn you could have sawed, sawn he could have sawed, sawn we could have sawed, sawn you could have sawed, sawn they could have sawed, sawn	I could have been sawing you could have been sawing he could have been sawing we could have been sawing you could have been sawing they could have been sawing

Negation

Simple form	V-ing form
I could not saw you could not saw he could not saw we could not saw you could not saw they could not saw	I could not be sawing you could not be sawing he could not be sawing we could not be sawing you could not be sawing they could not be sawing
Perfect	V-ing perfect
I could not have sawed, sawn you could not have sawed, sawn he could not have sawed, sawn we could not have sawed, sawn you could not have sawed, sawn they could not have sawed, sawn	I could not have been sawing you could not have been sawing he could not have been sawing we could not have been sawing you could not have been sawing they could not have been sawing

Interrogative form

Simple form	V-ing form
could I saw? could you saw? could he saw? could we saw? could you saw? could they saw?	could I be sawing? could you be sawing? could he be sawing? could we be sawing? could you be sawing? could they be sawing?
Perfect	V-ing perfect
could I have sawed, sawn? could you have sawed, sawn? could he have sawed, sawn? could we have sawed, sawn? could you have sawed, sawn? could they have sawed, sawn?	could I have been sawing? could you have been sawing? could he have been sawing? could we have been sawing? could you have been sawing? could they have been sawing?

Interro-negative form

Simple form	V-ing form
could I not saw? could you not saw? could he not saw? could we not saw? could you not saw? could they not saw?	could I not be sawing? could you not be sawing? could he not be sawing? could we not be sawing? could you not be sawing? could they not be sawing?
Perfect	V-ing perfect
could I not have sawed, sawn? could you not have sawed, sawn? could he not have sawed, sawn? could we not have sawed, sawn? could you not have sawed, sawn? could they not have sawed, sawn?	could I not have been sawing? could you not have been sawing? could he not have been sawing? could we not have been sawing? could you not have been sawing? could they not have been sawing?