English verb conjugation
CAN ERECT

Regular verb: erect - erected - erected

Affirmation

Simple form	V-ing form
I can erect you can erect she can erect we can erect you can erect they can erect	I can be erecting you can be erecting she can be erecting we can be erecting you can be erecting they can be erecting
Perfect	V-ing perfect
I can have erected you can have erected she can have erected we can have erected you can have erected they can have erected	I can have been erecting you can have been erecting she can have been erecting we can have been erecting you can have been erecting they can have been erecting

Negation

Simple form	V-ing form
I can't erect you can't erect she can't erect we can't erect you can't erect they can't erect	I can't be erecting you can't be erecting she can't be erecting we can't be erecting you can't be erecting they can't be erecting
Perfect	V-ing perfect
I can't have erected you can't have erected she can't have erected we can't have erected you can't have erected they can't have erected	I can't have been erecting you can't have been erecting she can't have been erecting we can't have been erecting you can't have been erecting they can't have been erecting

Interrogative form

Simple form	V-ing form
can I erect? can you erect? can she erect? can we erect? can you erect? can they erect?	can I be erecting? can you be erecting? can she be erecting? can we be erecting? can you be erecting? can they be erecting?
Perfect	V-ing perfect
can I have erected? can you have erected? can she have erected? can we have erected? can you have erected? can they have erected?	can I have been erecting? can you have been erecting? can she have been erecting? can we have been erecting? can you have been erecting? can they have been erecting?

Interro-negative form

Simple form	V-ing form
can't I erect? can't you erect? can't she erect? can't we erect? can't you erect? can't they erect?	can't I be erecting? can't you be erecting? can't she be erecting? can't we be erecting? can't you be erecting? can't they be erecting?
Perfect	V-ing perfect
can't I have erected? can't you have erected? can't she have erected? can't we have erected? can't you have erected? can't they have erected?	can't I have been erecting? can't you have been erecting? can't she have been erecting? can't we have been erecting? can't you have been erecting? can't they have been erecting?