English verb conjugation
CAN MENSTRUATE

Regular verb: menstruate - menstruated - menstruated

Affirmation

Simple form	V-ing form
I can menstruate you can menstruate he can menstruate we can menstruate you can menstruate they can menstruate	I can be menstruating you can be menstruating he can be menstruating we can be menstruating you can be menstruating they can be menstruating
Perfect	V-ing perfect
I can have menstruated you can have menstruated he can have menstruated we can have menstruated you can have menstruated they can have menstruated	I can have been menstruating you can have been menstruating he can have been menstruating we can have been menstruating you can have been menstruating they can have been menstruating

Negation

Simple form	V-ing form
I cannot menstruate you cannot menstruate he cannot menstruate we cannot menstruate you cannot menstruate they cannot menstruate	I cannot be menstruating you cannot be menstruating he cannot be menstruating we cannot be menstruating you cannot be menstruating they cannot be menstruating
Perfect	V-ing perfect
I cannot have menstruated you cannot have menstruated he cannot have menstruated we cannot have menstruated you cannot have menstruated they cannot have menstruated	I cannot have been menstruating you cannot have been menstruating he cannot have been menstruating we cannot have been menstruating you cannot have been menstruating they cannot have been menstruating

Interrogative form

Simple form	V-ing form
can I menstruate? can you menstruate? can he menstruate? can we menstruate? can you menstruate? can they menstruate?	can I be menstruating? can you be menstruating? can he be menstruating? can we be menstruating? can you be menstruating? can they be menstruating?
Perfect	V-ing perfect
can I have menstruated? can you have menstruated? can he have menstruated? can we have menstruated? can you have menstruated? can they have menstruated?	can I have been menstruating? can you have been menstruating? can he have been menstruating? can we have been menstruating? can you have been menstruating? can they have been menstruating?

Interro-negative form

Simple form	V-ing form
can I not menstruate? can you not menstruate? can he not menstruate? can we not menstruate? can you not menstruate? can they not menstruate?	can I not be menstruating? can you not be menstruating? can he not be menstruating? can we not be menstruating? can you not be menstruating? can they not be menstruating?
Perfect	V-ing perfect
can I not have menstruated? can you not have menstruated? can he not have menstruated? can we not have menstruated? can you not have menstruated? can they not have menstruated?	can I not have been menstruating? can you not have been menstruating? can he not have been menstruating? can we not have been menstruating? can you not have been menstruating? can they not have been menstruating?