English verb conjugation
COULD FRITTER

Regular verb: fritter - frittered - frittered

Affirmation

Simple form	V-ing form
I could fritter you could fritter he could fritter we could fritter you could fritter they could fritter	I could be frittering you could be frittering he could be frittering we could be frittering you could be frittering they could be frittering
Perfect	V-ing perfect
I could have frittered you could have frittered he could have frittered we could have frittered you could have frittered they could have frittered	I could have been frittering you could have been frittering he could have been frittering we could have been frittering you could have been frittering they could have been frittering

Negation

Simple form	V-ing form
I couldn't fritter you couldn't fritter he couldn't fritter we couldn't fritter you couldn't fritter they couldn't fritter	I couldn't be frittering you couldn't be frittering he couldn't be frittering we couldn't be frittering you couldn't be frittering they couldn't be frittering
Perfect	V-ing perfect
I couldn't have frittered you couldn't have frittered he couldn't have frittered we couldn't have frittered you couldn't have frittered they couldn't have frittered	I couldn't have been frittering you couldn't have been frittering he couldn't have been frittering we couldn't have been frittering you couldn't have been frittering they couldn't have been frittering

Interrogative form

Simple form	V-ing form
could I fritter? could you fritter? could he fritter? could we fritter? could you fritter? could they fritter?	could I be frittering? could you be frittering? could he be frittering? could we be frittering? could you be frittering? could they be frittering?
Perfect	V-ing perfect
could I have frittered? could you have frittered? could he have frittered? could we have frittered? could you have frittered? could they have frittered?	could I have been frittering? could you have been frittering? could he have been frittering? could we have been frittering? could you have been frittering? could they have been frittering?

Interro-negative form

Simple form	V-ing form
couldn't I fritter? couldn't you fritter? couldn't he fritter? couldn't we fritter? couldn't you fritter? couldn't they fritter?	couldn't I be frittering? couldn't you be frittering? couldn't he be frittering? couldn't we be frittering? couldn't you be frittering? couldn't they be frittering?
Perfect	V-ing perfect
couldn't I have frittered? couldn't you have frittered? couldn't he have frittered? couldn't we have frittered? couldn't you have frittered? couldn't they have frittered?	couldn't I have been frittering? couldn't you have been frittering? couldn't he have been frittering? couldn't we have been frittering? couldn't you have been frittering? couldn't they have been frittering?