English verb conjugation
COULD TURN IN

Regular verb: turn in - turn ined - turn ined

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could turn in you could turn in he could turn in we could turn in you could turn in they could turn in	I could be turn ining you could be turn ining he could be turn ining we could be turn ining you could be turn ining they could be turn ining
Perfect	V-ing perfect
I could have turn ined you could have turn ined he could have turn ined we could have turn ined you could have turn ined they could have turn ined	I could have been turn ining you could have been turn ining he could have been turn ining we could have been turn ining you could have been turn ining they could have been turn ining

Negation

Simple form	V-ing form
I could not turn in you could not turn in he could not turn in we could not turn in you could not turn in they could not turn in	I could not be turn ining you could not be turn ining he could not be turn ining we could not be turn ining you could not be turn ining they could not be turn ining
Perfect	V-ing perfect
I could not have turn ined you could not have turn ined he could not have turn ined we could not have turn ined you could not have turn ined they could not have turn ined	I could not have been turn ining you could not have been turn ining he could not have been turn ining we could not have been turn ining you could not have been turn ining they could not have been turn ining

Interrogative form

Simple form	V-ing form
could I turn in? could you turn in? could he turn in? could we turn in? could you turn in? could they turn in?	could I be turn ining? could you be turn ining? could he be turn ining? could we be turn ining? could you be turn ining? could they be turn ining?
Perfect	V-ing perfect
could I have turn ined? could you have turn ined? could he have turn ined? could we have turn ined? could you have turn ined? could they have turn ined?	could I have been turn ining? could you have been turn ining? could he have been turn ining? could we have been turn ining? could you have been turn ining? could they have been turn ining?

Interro-negative form

Simple form	V-ing form
could I not turn in? could you not turn in? could he not turn in? could we not turn in? could you not turn in? could they not turn in?	could I not be turn ining? could you not be turn ining? could he not be turn ining? could we not be turn ining? could you not be turn ining? could they not be turn ining?
Perfect	V-ing perfect
could I not have turn ined? could you not have turn ined? could he not have turn ined? could we not have turn ined? could you not have turn ined? could they not have turn ined?	could I not have been turn ining? could you not have been turn ining? could he not have been turn ining? could we not have been turn ining? could you not have been turn ining? could they not have been turn ining?