English verb conjugation
COULD RECOGNIZE

Regular verb: recognize - recognized - recognized

Affirmation

Simple form	V-ing form
I could recognize you could recognize she could recognize we could recognize you could recognize they could recognize	I could be recognizing you could be recognizing she could be recognizing we could be recognizing you could be recognizing they could be recognizing
Perfect	V-ing perfect
I could have recognized you could have recognized she could have recognized we could have recognized you could have recognized they could have recognized	I could have been recognizing you could have been recognizing she could have been recognizing we could have been recognizing you could have been recognizing they could have been recognizing

Negation

Simple form	V-ing form
I couldn't recognize you couldn't recognize she couldn't recognize we couldn't recognize you couldn't recognize they couldn't recognize	I couldn't be recognizing you couldn't be recognizing she couldn't be recognizing we couldn't be recognizing you couldn't be recognizing they couldn't be recognizing
Perfect	V-ing perfect
I couldn't have recognized you couldn't have recognized she couldn't have recognized we couldn't have recognized you couldn't have recognized they couldn't have recognized	I couldn't have been recognizing you couldn't have been recognizing she couldn't have been recognizing we couldn't have been recognizing you couldn't have been recognizing they couldn't have been recognizing

Interrogative form

Simple form	V-ing form
could I recognize? could you recognize? could she recognize? could we recognize? could you recognize? could they recognize?	could I be recognizing? could you be recognizing? could she be recognizing? could we be recognizing? could you be recognizing? could they be recognizing?
Perfect	V-ing perfect
could I have recognized? could you have recognized? could she have recognized? could we have recognized? could you have recognized? could they have recognized?	could I have been recognizing? could you have been recognizing? could she have been recognizing? could we have been recognizing? could you have been recognizing? could they have been recognizing?

Interro-negative form

Simple form	V-ing form
couldn't I recognize? couldn't you recognize? couldn't she recognize? couldn't we recognize? couldn't you recognize? couldn't they recognize?	couldn't I be recognizing? couldn't you be recognizing? couldn't she be recognizing? couldn't we be recognizing? couldn't you be recognizing? couldn't they be recognizing?
Perfect	V-ing perfect
couldn't I have recognized? couldn't you have recognized? couldn't she have recognized? couldn't we have recognized? couldn't you have recognized? couldn't they have recognized?	couldn't I have been recognizing? couldn't you have been recognizing? couldn't she have been recognizing? couldn't we have been recognizing? couldn't you have been recognizing? couldn't they have been recognizing?