English verb conjugation
COULD INHALE

Regular verb: inhale - inhaled - inhaled

Affirmation

Simple form	V-ing form
I could inhale you could inhale he could inhale we could inhale you could inhale they could inhale	I could be inhaling you could be inhaling he could be inhaling we could be inhaling you could be inhaling they could be inhaling
Perfect	V-ing perfect
I could have inhaled you could have inhaled he could have inhaled we could have inhaled you could have inhaled they could have inhaled	I could have been inhaling you could have been inhaling he could have been inhaling we could have been inhaling you could have been inhaling they could have been inhaling

Negation

Simple form	V-ing form
I could not inhale you could not inhale he could not inhale we could not inhale you could not inhale they could not inhale	I could not be inhaling you could not be inhaling he could not be inhaling we could not be inhaling you could not be inhaling they could not be inhaling
Perfect	V-ing perfect
I could not have inhaled you could not have inhaled he could not have inhaled we could not have inhaled you could not have inhaled they could not have inhaled	I could not have been inhaling you could not have been inhaling he could not have been inhaling we could not have been inhaling you could not have been inhaling they could not have been inhaling

Interrogative form

Simple form	V-ing form
could I inhale? could you inhale? could he inhale? could we inhale? could you inhale? could they inhale?	could I be inhaling? could you be inhaling? could he be inhaling? could we be inhaling? could you be inhaling? could they be inhaling?
Perfect	V-ing perfect
could I have inhaled? could you have inhaled? could he have inhaled? could we have inhaled? could you have inhaled? could they have inhaled?	could I have been inhaling? could you have been inhaling? could he have been inhaling? could we have been inhaling? could you have been inhaling? could they have been inhaling?

Interro-negative form

Simple form	V-ing form
could I not inhale? could you not inhale? could he not inhale? could we not inhale? could you not inhale? could they not inhale?	could I not be inhaling? could you not be inhaling? could he not be inhaling? could we not be inhaling? could you not be inhaling? could they not be inhaling?
Perfect	V-ing perfect
could I not have inhaled? could you not have inhaled? could he not have inhaled? could we not have inhaled? could you not have inhaled? could they not have inhaled?	could I not have been inhaling? could you not have been inhaling? could he not have been inhaling? could we not have been inhaling? could you not have been inhaling? could they not have been inhaling?