English verb conjugation
COULD SQUIB

Regular verb: squib - squibed - squibed

Affirmation

Simple form	V-ing form
I could squib you could squib he could squib we could squib you could squib they could squib	I could be squibing you could be squibing he could be squibing we could be squibing you could be squibing they could be squibing
Perfect	V-ing perfect
I could have squibed you could have squibed he could have squibed we could have squibed you could have squibed they could have squibed	I could have been squibing you could have been squibing he could have been squibing we could have been squibing you could have been squibing they could have been squibing

Negation

Simple form	V-ing form
I could not squib you could not squib he could not squib we could not squib you could not squib they could not squib	I could not be squibing you could not be squibing he could not be squibing we could not be squibing you could not be squibing they could not be squibing
Perfect	V-ing perfect
I could not have squibed you could not have squibed he could not have squibed we could not have squibed you could not have squibed they could not have squibed	I could not have been squibing you could not have been squibing he could not have been squibing we could not have been squibing you could not have been squibing they could not have been squibing

Interrogative form

Simple form	V-ing form
could I squib? could you squib? could he squib? could we squib? could you squib? could they squib?	could I be squibing? could you be squibing? could he be squibing? could we be squibing? could you be squibing? could they be squibing?
Perfect	V-ing perfect
could I have squibed? could you have squibed? could he have squibed? could we have squibed? could you have squibed? could they have squibed?	could I have been squibing? could you have been squibing? could he have been squibing? could we have been squibing? could you have been squibing? could they have been squibing?

Interro-negative form

Simple form	V-ing form
could I not squib? could you not squib? could he not squib? could we not squib? could you not squib? could they not squib?	could I not be squibing? could you not be squibing? could he not be squibing? could we not be squibing? could you not be squibing? could they not be squibing?
Perfect	V-ing perfect
could I not have squibed? could you not have squibed? could he not have squibed? could we not have squibed? could you not have squibed? could they not have squibed?	could I not have been squibing? could you not have been squibing? could he not have been squibing? could we not have been squibing? could you not have been squibing? could they not have been squibing?