English verb conjugation
COULD COMPRESS

Regular verb: compress - compressed - compressed

Affirmation

Simple form	V-ing form
I could compress you could compress she could compress we could compress you could compress they could compress	I could be compressing you could be compressing she could be compressing we could be compressing you could be compressing they could be compressing
Perfect	V-ing perfect
I could have compressed you could have compressed she could have compressed we could have compressed you could have compressed they could have compressed	I could have been compressing you could have been compressing she could have been compressing we could have been compressing you could have been compressing they could have been compressing

Negation

Simple form	V-ing form
I could not compress you could not compress she could not compress we could not compress you could not compress they could not compress	I could not be compressing you could not be compressing she could not be compressing we could not be compressing you could not be compressing they could not be compressing
Perfect	V-ing perfect
I could not have compressed you could not have compressed she could not have compressed we could not have compressed you could not have compressed they could not have compressed	I could not have been compressing you could not have been compressing she could not have been compressing we could not have been compressing you could not have been compressing they could not have been compressing

Interrogative form

Simple form	V-ing form
could I compress? could you compress? could she compress? could we compress? could you compress? could they compress?	could I be compressing? could you be compressing? could she be compressing? could we be compressing? could you be compressing? could they be compressing?
Perfect	V-ing perfect
could I have compressed? could you have compressed? could she have compressed? could we have compressed? could you have compressed? could they have compressed?	could I have been compressing? could you have been compressing? could she have been compressing? could we have been compressing? could you have been compressing? could they have been compressing?

Interro-negative form

Simple form	V-ing form
could I not compress? could you not compress? could she not compress? could we not compress? could you not compress? could they not compress?	could I not be compressing? could you not be compressing? could she not be compressing? could we not be compressing? could you not be compressing? could they not be compressing?
Perfect	V-ing perfect
could I not have compressed? could you not have compressed? could she not have compressed? could we not have compressed? could you not have compressed? could they not have compressed?	could I not have been compressing? could you not have been compressing? could she not have been compressing? could we not have been compressing? could you not have been compressing? could they not have been compressing?