English verb conjugation
COULD FLETCH

Regular verb: fletch - fletched - fletched

Affirmation

Simple form	V-ing form
I could fletch you could fletch he could fletch we could fletch you could fletch they could fletch	I could be fletching you could be fletching he could be fletching we could be fletching you could be fletching they could be fletching
Perfect	V-ing perfect
I could have fletched you could have fletched he could have fletched we could have fletched you could have fletched they could have fletched	I could have been fletching you could have been fletching he could have been fletching we could have been fletching you could have been fletching they could have been fletching

Negation

Simple form	V-ing form
I couldn't fletch you couldn't fletch he couldn't fletch we couldn't fletch you couldn't fletch they couldn't fletch	I couldn't be fletching you couldn't be fletching he couldn't be fletching we couldn't be fletching you couldn't be fletching they couldn't be fletching
Perfect	V-ing perfect
I couldn't have fletched you couldn't have fletched he couldn't have fletched we couldn't have fletched you couldn't have fletched they couldn't have fletched	I couldn't have been fletching you couldn't have been fletching he couldn't have been fletching we couldn't have been fletching you couldn't have been fletching they couldn't have been fletching

Interrogative form

Simple form	V-ing form
could I fletch? could you fletch? could he fletch? could we fletch? could you fletch? could they fletch?	could I be fletching? could you be fletching? could he be fletching? could we be fletching? could you be fletching? could they be fletching?
Perfect	V-ing perfect
could I have fletched? could you have fletched? could he have fletched? could we have fletched? could you have fletched? could they have fletched?	could I have been fletching? could you have been fletching? could he have been fletching? could we have been fletching? could you have been fletching? could they have been fletching?

Interro-negative form

Simple form	V-ing form
couldn't I fletch? couldn't you fletch? couldn't he fletch? couldn't we fletch? couldn't you fletch? couldn't they fletch?	couldn't I be fletching? couldn't you be fletching? couldn't he be fletching? couldn't we be fletching? couldn't you be fletching? couldn't they be fletching?
Perfect	V-ing perfect
couldn't I have fletched? couldn't you have fletched? couldn't he have fletched? couldn't we have fletched? couldn't you have fletched? couldn't they have fletched?	couldn't I have been fletching? couldn't you have been fletching? couldn't he have been fletching? couldn't we have been fletching? couldn't you have been fletching? couldn't they have been fletching?