English verb conjugation
COULD EXHALE

Regular verb: exhale - exhaled - exhaled

Affirmation

Simple form	V-ing form
I could exhale you could exhale he could exhale we could exhale you could exhale they could exhale	I could be exhaling you could be exhaling he 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 he 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 he 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 could not exhale you could not exhale he could not exhale we could not exhale you could not exhale they could not exhale	I could not be exhaling you could not be exhaling he could not be exhaling we could not be exhaling you could not be exhaling they could not be exhaling
Perfect	V-ing perfect
I could not have exhaled you could not have exhaled he could not have exhaled we could not have exhaled you could not have exhaled they could not have exhaled	I could not have been exhaling you could not have been exhaling he could not have been exhaling we could not have been exhaling you could not have been exhaling they could not have been exhaling

Interrogative form

Simple form	V-ing form
could I exhale? could you exhale? could he exhale? could we exhale? could you exhale? could they exhale?	could I be exhaling? could you be exhaling? could he 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 he 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 he 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
could I not exhale? could you not exhale? could he not exhale? could we not exhale? could you not exhale? could they not exhale?	could I not be exhaling? could you not be exhaling? could he not be exhaling? could we not be exhaling? could you not be exhaling? could they not be exhaling?
Perfect	V-ing perfect
could I not have exhaled? could you not have exhaled? could he not have exhaled? could we not have exhaled? could you not have exhaled? could they not have exhaled?	could I not have been exhaling? could you not have been exhaling? could he not have been exhaling? could we not have been exhaling? could you not have been exhaling? could they not have been exhaling?