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 couldn't communicate you couldn't communicate he couldn't communicate we couldn't communicate you couldn't communicate they couldn't communicate	I couldn't be communicating you couldn't be communicating he couldn't be communicating we couldn't be communicating you couldn't be communicating they couldn't be communicating
Perfect	V-ing perfect
I couldn't have communicated you couldn't have communicated he couldn't have communicated we couldn't have communicated you couldn't have communicated they couldn't have communicated	I couldn't have been communicating you couldn't have been communicating he couldn't have been communicating we couldn't have been communicating you couldn't have been communicating they couldn't 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
couldn't I communicate? couldn't you communicate? couldn't he communicate? couldn't we communicate? couldn't you communicate? couldn't they communicate?	couldn't I be communicating? couldn't you be communicating? couldn't he be communicating? couldn't we be communicating? couldn't you be communicating? couldn't they be communicating?
Perfect	V-ing perfect
couldn't I have communicated? couldn't you have communicated? couldn't he have communicated? couldn't we have communicated? couldn't you have communicated? couldn't they have communicated?	couldn't I have been communicating? couldn't you have been communicating? couldn't he have been communicating? couldn't we have been communicating? couldn't you have been communicating? couldn't they have been communicating?