English verb conjugation
COULD SQUASH

Regular verb: squash - squashed - squashed

Affirmation

Simple form	V-ing form
I could squash you could squash he could squash we could squash you could squash they could squash	I could be squashing you could be squashing he could be squashing we could be squashing you could be squashing they could be squashing
Perfect	V-ing perfect
I could have squashed you could have squashed he could have squashed we could have squashed you could have squashed they could have squashed	I could have been squashing you could have been squashing he could have been squashing we could have been squashing you could have been squashing they could have been squashing

Negation

Simple form	V-ing form
I could not squash you could not squash he could not squash we could not squash you could not squash they could not squash	I could not be squashing you could not be squashing he could not be squashing we could not be squashing you could not be squashing they could not be squashing
Perfect	V-ing perfect
I could not have squashed you could not have squashed he could not have squashed we could not have squashed you could not have squashed they could not have squashed	I could not have been squashing you could not have been squashing he could not have been squashing we could not have been squashing you could not have been squashing they could not have been squashing

Interrogative form

Simple form	V-ing form
could I squash? could you squash? could he squash? could we squash? could you squash? could they squash?	could I be squashing? could you be squashing? could he be squashing? could we be squashing? could you be squashing? could they be squashing?
Perfect	V-ing perfect
could I have squashed? could you have squashed? could he have squashed? could we have squashed? could you have squashed? could they have squashed?	could I have been squashing? could you have been squashing? could he have been squashing? could we have been squashing? could you have been squashing? could they have been squashing?

Interro-negative form

Simple form	V-ing form
could I not squash? could you not squash? could he not squash? could we not squash? could you not squash? could they not squash?	could I not be squashing? could you not be squashing? could he not be squashing? could we not be squashing? could you not be squashing? could they not be squashing?
Perfect	V-ing perfect
could I not have squashed? could you not have squashed? could he not have squashed? could we not have squashed? could you not have squashed? could they not have squashed?	could I not have been squashing? could you not have been squashing? could he not have been squashing? could we not have been squashing? could you not have been squashing? could they not have been squashing?