Regular verb: look through - look throughed - look throughed
Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must look through you must look through he must look through we must look through you must look through they must look through
V-ing form
I must be look throughing you must be look throughing he must be look throughing we must be look throughing you must be look throughing they must be look throughing
Perfect
I must have look throughed you must have look throughed he must have look throughed we must have look throughed you must have look throughed they must have look throughed
V-ing perfect
I must have been look throughing you must have been look throughing he must have been look throughing we must have been look throughing you must have been look throughing they must have been look throughing
Negation
Simple form
I must not look through you must not look through he must not look through we must not look through you must not look through they must not look through
V-ing form
I must not be look throughing you must not be look throughing he must not be look throughing we must not be look throughing you must not be look throughing they must not be look throughing
Perfect
I must not have look throughed you must not have look throughed he must not have look throughed we must not have look throughed you must not have look throughed they must not have look throughed
V-ing perfect
I must not have been look throughing you must not have been look throughing he must not have been look throughing we must not have been look throughing you must not have been look throughing they must not have been look throughing
Interrogative form
Simple form
must I look through? must you look through? must he look through? must we look through? must you look through? must they look through?
V-ing form
must I be look throughing? must you be look throughing? must he be look throughing? must we be look throughing? must you be look throughing? must they be look throughing?
Perfect
must I have look throughed? must you have look throughed? must he have look throughed? must we have look throughed? must you have look throughed? must they have look throughed?
V-ing perfect
must I have been look throughing? must you have been look throughing? must he have been look throughing? must we have been look throughing? must you have been look throughing? must they have been look throughing?
Interro-negative form
Simple form
must I not look through? must you not look through? must he not look through? must we not look through? must you not look through? must they not look through?
V-ing form
must I not be look throughing? must you not be look throughing? must he not be look throughing? must we not be look throughing? must you not be look throughing? must they not be look throughing?
Perfect
must I not have look throughed? must you not have look throughed? must he not have look throughed? must we not have look throughed? must you not have look throughed? must they not have look throughed?
V-ing perfect
must I not have been look throughing? must you not have been look throughing? must he not have been look throughing? must we not have been look throughing? must you not have been look throughing? must they not have been look throughing?