English verb conjugation
CAN PREEXAMINE

Regular verb: preexamine - preexamined - preexamined

Affirmation

Simple form	V-ing form
I can preexamine you can preexamine he can preexamine we can preexamine you can preexamine they can preexamine	I can be preexamining you can be preexamining he can be preexamining we can be preexamining you can be preexamining they can be preexamining
Perfect	V-ing perfect
I can have preexamined you can have preexamined he can have preexamined we can have preexamined you can have preexamined they can have preexamined	I can have been preexamining you can have been preexamining he can have been preexamining we can have been preexamining you can have been preexamining they can have been preexamining

Negation

Simple form	V-ing form
I cannot preexamine you cannot preexamine he cannot preexamine we cannot preexamine you cannot preexamine they cannot preexamine	I cannot be preexamining you cannot be preexamining he cannot be preexamining we cannot be preexamining you cannot be preexamining they cannot be preexamining
Perfect	V-ing perfect
I cannot have preexamined you cannot have preexamined he cannot have preexamined we cannot have preexamined you cannot have preexamined they cannot have preexamined	I cannot have been preexamining you cannot have been preexamining he cannot have been preexamining we cannot have been preexamining you cannot have been preexamining they cannot have been preexamining

Interrogative form

Simple form	V-ing form
can I preexamine? can you preexamine? can he preexamine? can we preexamine? can you preexamine? can they preexamine?	can I be preexamining? can you be preexamining? can he be preexamining? can we be preexamining? can you be preexamining? can they be preexamining?
Perfect	V-ing perfect
can I have preexamined? can you have preexamined? can he have preexamined? can we have preexamined? can you have preexamined? can they have preexamined?	can I have been preexamining? can you have been preexamining? can he have been preexamining? can we have been preexamining? can you have been preexamining? can they have been preexamining?

Interro-negative form

Simple form	V-ing form
can I not preexamine? can you not preexamine? can he not preexamine? can we not preexamine? can you not preexamine? can they not preexamine?	can I not be preexamining? can you not be preexamining? can he not be preexamining? can we not be preexamining? can you not be preexamining? can they not be preexamining?
Perfect	V-ing perfect
can I not have preexamined? can you not have preexamined? can he not have preexamined? can we not have preexamined? can you not have preexamined? can they not have preexamined?	can I not have been preexamining? can you not have been preexamining? can he not have been preexamining? can we not have been preexamining? can you not have been preexamining? can they not have been preexamining?