English verb conjugation
CAN 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 can turn in you can turn in he can turn in we can turn in you can turn in they can turn in	I can be turn ining you can be turn ining he can be turn ining we can be turn ining you can be turn ining they can be turn ining
Perfect	V-ing perfect
I can have turn ined you can have turn ined he can have turn ined we can have turn ined you can have turn ined they can have turn ined	I can have been turn ining you can have been turn ining he can have been turn ining we can have been turn ining you can have been turn ining they can have been turn ining

Negation

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

Interrogative form

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

Interro-negative form

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