English verb conjugation
COULD FRIT

Regular verb: frit - frited - frited

Affirmation

Simple form	V-ing form
I could frit you could frit she could frit we could frit you could frit they could frit	I could be friting you could be friting she could be friting we could be friting you could be friting they could be friting
Perfect	V-ing perfect
I could have frited you could have frited she could have frited we could have frited you could have frited they could have frited	I could have been friting you could have been friting she could have been friting we could have been friting you could have been friting they could have been friting

Negation

Simple form	V-ing form
I couldn't frit you couldn't frit she couldn't frit we couldn't frit you couldn't frit they couldn't frit	I couldn't be friting you couldn't be friting she couldn't be friting we couldn't be friting you couldn't be friting they couldn't be friting
Perfect	V-ing perfect
I couldn't have frited you couldn't have frited she couldn't have frited we couldn't have frited you couldn't have frited they couldn't have frited	I couldn't have been friting you couldn't have been friting she couldn't have been friting we couldn't have been friting you couldn't have been friting they couldn't have been friting

Interrogative form

Simple form	V-ing form
could I frit? could you frit? could she frit? could we frit? could you frit? could they frit?	could I be friting? could you be friting? could she be friting? could we be friting? could you be friting? could they be friting?
Perfect	V-ing perfect
could I have frited? could you have frited? could she have frited? could we have frited? could you have frited? could they have frited?	could I have been friting? could you have been friting? could she have been friting? could we have been friting? could you have been friting? could they have been friting?

Interro-negative form

Simple form	V-ing form
couldn't I frit? couldn't you frit? couldn't she frit? couldn't we frit? couldn't you frit? couldn't they frit?	couldn't I be friting? couldn't you be friting? couldn't she be friting? couldn't we be friting? couldn't you be friting? couldn't they be friting?
Perfect	V-ing perfect
couldn't I have frited? couldn't you have frited? couldn't she have frited? couldn't we have frited? couldn't you have frited? couldn't they have frited?	couldn't I have been friting? couldn't you have been friting? couldn't she have been friting? couldn't we have been friting? couldn't you have been friting? couldn't they have been friting?