English verb conjugation
COULD AMUSE

Regular verb: amuse - amused - amused

Affirmation

Simple form	V-ing form
I could amuse you could amuse he could amuse we could amuse you could amuse they could amuse	I could be amusing you could be amusing he could be amusing we could be amusing you could be amusing they could be amusing
Perfect	V-ing perfect
I could have amused you could have amused he could have amused we could have amused you could have amused they could have amused	I could have been amusing you could have been amusing he could have been amusing we could have been amusing you could have been amusing they could have been amusing

Negation

Simple form	V-ing form
I couldn't amuse you couldn't amuse he couldn't amuse we couldn't amuse you couldn't amuse they couldn't amuse	I couldn't be amusing you couldn't be amusing he couldn't be amusing we couldn't be amusing you couldn't be amusing they couldn't be amusing
Perfect	V-ing perfect
I couldn't have amused you couldn't have amused he couldn't have amused we couldn't have amused you couldn't have amused they couldn't have amused	I couldn't have been amusing you couldn't have been amusing he couldn't have been amusing we couldn't have been amusing you couldn't have been amusing they couldn't have been amusing

Interrogative form

Simple form	V-ing form
could I amuse? could you amuse? could he amuse? could we amuse? could you amuse? could they amuse?	could I be amusing? could you be amusing? could he be amusing? could we be amusing? could you be amusing? could they be amusing?
Perfect	V-ing perfect
could I have amused? could you have amused? could he have amused? could we have amused? could you have amused? could they have amused?	could I have been amusing? could you have been amusing? could he have been amusing? could we have been amusing? could you have been amusing? could they have been amusing?

Interro-negative form

Simple form	V-ing form
couldn't I amuse? couldn't you amuse? couldn't he amuse? couldn't we amuse? couldn't you amuse? couldn't they amuse?	couldn't I be amusing? couldn't you be amusing? couldn't he be amusing? couldn't we be amusing? couldn't you be amusing? couldn't they be amusing?
Perfect	V-ing perfect
couldn't I have amused? couldn't you have amused? couldn't he have amused? couldn't we have amused? couldn't you have amused? couldn't they have amused?	couldn't I have been amusing? couldn't you have been amusing? couldn't he have been amusing? couldn't we have been amusing? couldn't you have been amusing? couldn't they have been amusing?