English verb conjugation
COULD REACH

Regular verb: reach - reached - reached

Affirmation

Simple form	V-ing form
I could reach you could reach he could reach we could reach you could reach they could reach	I could be reaching you could be reaching he could be reaching we could be reaching you could be reaching they could be reaching
Perfect	V-ing perfect
I could have reached you could have reached he could have reached we could have reached you could have reached they could have reached	I could have been reaching you could have been reaching he could have been reaching we could have been reaching you could have been reaching they could have been reaching

Negation

Simple form	V-ing form
I could not reach you could not reach he could not reach we could not reach you could not reach they could not reach	I could not be reaching you could not be reaching he could not be reaching we could not be reaching you could not be reaching they could not be reaching
Perfect	V-ing perfect
I could not have reached you could not have reached he could not have reached we could not have reached you could not have reached they could not have reached	I could not have been reaching you could not have been reaching he could not have been reaching we could not have been reaching you could not have been reaching they could not have been reaching

Interrogative form

Simple form	V-ing form
could I reach? could you reach? could he reach? could we reach? could you reach? could they reach?	could I be reaching? could you be reaching? could he be reaching? could we be reaching? could you be reaching? could they be reaching?
Perfect	V-ing perfect
could I have reached? could you have reached? could he have reached? could we have reached? could you have reached? could they have reached?	could I have been reaching? could you have been reaching? could he have been reaching? could we have been reaching? could you have been reaching? could they have been reaching?

Interro-negative form

Simple form	V-ing form
could I not reach? could you not reach? could he not reach? could we not reach? could you not reach? could they not reach?	could I not be reaching? could you not be reaching? could he not be reaching? could we not be reaching? could you not be reaching? could they not be reaching?
Perfect	V-ing perfect
could I not have reached? could you not have reached? could he not have reached? could we not have reached? could you not have reached? could they not have reached?	could I not have been reaching? could you not have been reaching? could he not have been reaching? could we not have been reaching? could you not have been reaching? could they not have been reaching?