could inhale
Regular verb: inhale - inhaled- inhaled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?