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 couldn't fringe you couldn't fringe he couldn't fringe we couldn't fringe you couldn't fringe they couldn't fringe	I couldn't be fringing you couldn't be fringing he couldn't be fringing we couldn't be fringing you couldn't be fringing they couldn't be fringing
Perfect	V-ing perfect
I couldn't have fringed you couldn't have fringed he couldn't have fringed we couldn't have fringed you couldn't have fringed they couldn't have fringed	I couldn't have been fringing you couldn't have been fringing he couldn't have been fringing we couldn't have been fringing you couldn't have been fringing they couldn't 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
couldn't I fringe? couldn't you fringe? couldn't he fringe? couldn't we fringe? couldn't you fringe? couldn't they fringe?	couldn't I be fringing? couldn't you be fringing? couldn't he be fringing? couldn't we be fringing? couldn't you be fringing? couldn't they be fringing?
Perfect	V-ing perfect
couldn't I have fringed? couldn't you have fringed? couldn't he have fringed? couldn't we have fringed? couldn't you have fringed? couldn't they have fringed?	couldn't I have been fringing? couldn't you have been fringing? couldn't he have been fringing? couldn't we have been fringing? couldn't you have been fringing? couldn't they have been fringing?