English verb conjugation
COULD FRINGE

Regular verb: fringe - fringed - fringed

Affirmation

Simple form	V-ing form
I could fringe you could fringe he could fringe we could fringe you could fringe they could fringe	I could be fringing you could be fringing he could be fringing we could be fringing you could be fringing they could be fringing
Perfect	V-ing perfect
I could have fringed you could have fringed he could have fringed we could have fringed you could have fringed they could have fringed	I could have been fringing you could have been fringing he could have been fringing we could have been fringing you could have been fringing they could have been fringing

Negation

Simple form	V-ing form
I could not fringe you could not fringe he could not fringe we could not fringe you could not fringe they could not fringe	I could not be fringing you could not be fringing he could not be fringing we could not be fringing you could not be fringing they could not be fringing
Perfect	V-ing perfect
I could not have fringed you could not have fringed he could not have fringed we could not have fringed you could not have fringed they could not have fringed	I could not have been fringing you could not have been fringing he could not have been fringing we could not have been fringing you could not have been fringing they could not have been fringing

Interrogative form

Simple form	V-ing form
could I fringe? could you fringe? could he fringe? could we fringe? could you fringe? could they fringe?	could I be fringing? could you be fringing? could he be fringing? could we be fringing? could you be fringing? could they be fringing?
Perfect	V-ing perfect
could I have fringed? could you have fringed? could he have fringed? could we have fringed? could you have fringed? could they have fringed?	could I have been fringing? could you have been fringing? could he have been fringing? could we have been fringing? could you have been fringing? could they have been fringing?

Interro-negative form

Simple form	V-ing form
could I not fringe? could you not fringe? could he not fringe? could we not fringe? could you not fringe? could they not fringe?	could I not be fringing? could you not be fringing? could he not be fringing? could we not be fringing? could you not be fringing? could they not be fringing?
Perfect	V-ing perfect
could I not have fringed? could you not have fringed? could he not have fringed? could we not have fringed? could you not have fringed? could they not have fringed?	could I not have been fringing? could you not have been fringing? could he not have been fringing? could we not have been fringing? could you not have been fringing? could they not have been fringing?