English verb conjugation
COULD INPUT

Irregular verb: input - input - input

Affirmation

Simple form	V-ing form
I could input you could input he could input we could input you could input they could input	I could be inputing you could be inputing he could be inputing we could be inputing you could be inputing they could be inputing
Perfect	V-ing perfect
I could have input you could have input he could have input we could have input you could have input they could have input	I could have been inputing you could have been inputing he could have been inputing we could have been inputing you could have been inputing they could have been inputing

Negation

Simple form	V-ing form
I could not input you could not input he could not input we could not input you could not input they could not input	I could not be inputing you could not be inputing he could not be inputing we could not be inputing you could not be inputing they could not be inputing
Perfect	V-ing perfect
I could not have input you could not have input he could not have input we could not have input you could not have input they could not have input	I could not have been inputing you could not have been inputing he could not have been inputing we could not have been inputing you could not have been inputing they could not have been inputing

Interrogative form

Simple form	V-ing form
could I input? could you input? could he input? could we input? could you input? could they input?	could I be inputing? could you be inputing? could he be inputing? could we be inputing? could you be inputing? could they be inputing?
Perfect	V-ing perfect
could I have input? could you have input? could he have input? could we have input? could you have input? could they have input?	could I have been inputing? could you have been inputing? could he have been inputing? could we have been inputing? could you have been inputing? could they have been inputing?

Interro-negative form

Simple form	V-ing form
could I not input? could you not input? could he not input? could we not input? could you not input? could they not input?	could I not be inputing? could you not be inputing? could he not be inputing? could we not be inputing? could you not be inputing? could they not be inputing?
Perfect	V-ing perfect
could I not have input? could you not have input? could he not have input? could we not have input? could you not have input? could they not have input?	could I not have been inputing? could you not have been inputing? could he not have been inputing? could we not have been inputing? could you not have been inputing? could they not have been inputing?