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 cannot erect you cannot erect she cannot erect we cannot erect you cannot erect they cannot erect	I cannot be erecting you cannot be erecting she cannot be erecting we cannot be erecting you cannot be erecting they cannot be erecting
Perfect	V-ing perfect
I cannot have erected you cannot have erected she cannot have erected we cannot have erected you cannot have erected they cannot have erected	I cannot have been erecting you cannot have been erecting she cannot have been erecting we cannot have been erecting you cannot have been erecting they cannot 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 I not erect? can you not erect? can she not erect? can we not erect? can you not erect? can they not erect?	can I not be erecting? can you not be erecting? can she not be erecting? can we not be erecting? can you not be erecting? can they not be erecting?
Perfect	V-ing perfect
can I not have erected? can you not have erected? can she not have erected? can we not have erected? can you not have erected? can they not have erected?	can I not have been erecting? can you not have been erecting? can she not have been erecting? can we not have been erecting? can you not have been erecting? can they not have been erecting?