English verb conjugation
COULD COMMUNICATE

Regular verb: communicate - communicated - communicated

Affirmation

Simple form	V-ing form
I could communicate you could communicate he could communicate we could communicate you could communicate they could communicate	I could be communicating you could be communicating he could be communicating we could be communicating you could be communicating they could be communicating
Perfect	V-ing perfect
I could have communicated you could have communicated he could have communicated we could have communicated you could have communicated they could have communicated	I could have been communicating you could have been communicating he could have been communicating we could have been communicating you could have been communicating they could have been communicating

Negation

Simple form	V-ing form
I could not communicate you could not communicate he could not communicate we could not communicate you could not communicate they could not communicate	I could not be communicating you could not be communicating he could not be communicating we could not be communicating you could not be communicating they could not be communicating
Perfect	V-ing perfect
I could not have communicated you could not have communicated he could not have communicated we could not have communicated you could not have communicated they could not have communicated	I could not have been communicating you could not have been communicating he could not have been communicating we could not have been communicating you could not have been communicating they could not have been communicating

Interrogative form

Simple form	V-ing form
could I communicate? could you communicate? could he communicate? could we communicate? could you communicate? could they communicate?	could I be communicating? could you be communicating? could he be communicating? could we be communicating? could you be communicating? could they be communicating?
Perfect	V-ing perfect
could I have communicated? could you have communicated? could he have communicated? could we have communicated? could you have communicated? could they have communicated?	could I have been communicating? could you have been communicating? could he have been communicating? could we have been communicating? could you have been communicating? could they have been communicating?

Interro-negative form

Simple form	V-ing form
could I not communicate? could you not communicate? could he not communicate? could we not communicate? could you not communicate? could they not communicate?	could I not be communicating? could you not be communicating? could he not be communicating? could we not be communicating? could you not be communicating? could they not be communicating?
Perfect	V-ing perfect
could I not have communicated? could you not have communicated? could he not have communicated? could we not have communicated? could you not have communicated? could they not have communicated?	could I not have been communicating? could you not have been communicating? could he not have been communicating? could we not have been communicating? could you not have been communicating? could they not have been communicating?