English verb conjugation
COULD EXHALE

Regular verb: exhale - exhaled - exhaled

Affirmation

Simple form	V-ing form
I could exhale you could exhale she could exhale we could exhale you could exhale they could exhale	I could be exhaling you could be exhaling she could be exhaling we could be exhaling you could be exhaling they could be exhaling
Perfect	V-ing perfect
I could have exhaled you could have exhaled she could have exhaled we could have exhaled you could have exhaled they could have exhaled	I could have been exhaling you could have been exhaling she could have been exhaling we could have been exhaling you could have been exhaling they could have been exhaling

Negation

Simple form	V-ing form
I couldn't exhale you couldn't exhale she couldn't exhale we couldn't exhale you couldn't exhale they couldn't exhale	I couldn't be exhaling you couldn't be exhaling she couldn't be exhaling we couldn't be exhaling you couldn't be exhaling they couldn't be exhaling
Perfect	V-ing perfect
I couldn't have exhaled you couldn't have exhaled she couldn't have exhaled we couldn't have exhaled you couldn't have exhaled they couldn't have exhaled	I couldn't have been exhaling you couldn't have been exhaling she couldn't have been exhaling we couldn't have been exhaling you couldn't have been exhaling they couldn't have been exhaling

Interrogative form

Simple form	V-ing form
could I exhale? could you exhale? could she exhale? could we exhale? could you exhale? could they exhale?	could I be exhaling? could you be exhaling? could she be exhaling? could we be exhaling? could you be exhaling? could they be exhaling?
Perfect	V-ing perfect
could I have exhaled? could you have exhaled? could she have exhaled? could we have exhaled? could you have exhaled? could they have exhaled?	could I have been exhaling? could you have been exhaling? could she have been exhaling? could we have been exhaling? could you have been exhaling? could they have been exhaling?

Interro-negative form

Simple form	V-ing form
couldn't I exhale? couldn't you exhale? couldn't she exhale? couldn't we exhale? couldn't you exhale? couldn't they exhale?	couldn't I be exhaling? couldn't you be exhaling? couldn't she be exhaling? couldn't we be exhaling? couldn't you be exhaling? couldn't they be exhaling?
Perfect	V-ing perfect
couldn't I have exhaled? couldn't you have exhaled? couldn't she have exhaled? couldn't we have exhaled? couldn't you have exhaled? couldn't they have exhaled?	couldn't I have been exhaling? couldn't you have been exhaling? couldn't she have been exhaling? couldn't we have been exhaling? couldn't you have been exhaling? couldn't they have been exhaling?