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 couldn't reach you couldn't reach he couldn't reach we couldn't reach you couldn't reach they couldn't reach	I couldn't be reaching you couldn't be reaching he couldn't be reaching we couldn't be reaching you couldn't be reaching they couldn't be reaching
Perfect	V-ing perfect
I couldn't have reached you couldn't have reached he couldn't have reached we couldn't have reached you couldn't have reached they couldn't have reached	I couldn't have been reaching you couldn't have been reaching he couldn't have been reaching we couldn't have been reaching you couldn't have been reaching they couldn't 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
couldn't I reach? couldn't you reach? couldn't he reach? couldn't we reach? couldn't you reach? couldn't they reach?	couldn't I be reaching? couldn't you be reaching? couldn't he be reaching? couldn't we be reaching? couldn't you be reaching? couldn't they be reaching?
Perfect	V-ing perfect
couldn't I have reached? couldn't you have reached? couldn't he have reached? couldn't we have reached? couldn't you have reached? couldn't they have reached?	couldn't I have been reaching? couldn't you have been reaching? couldn't he have been reaching? couldn't we have been reaching? couldn't you have been reaching? couldn't they have been reaching?