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 can't menstruate you can't menstruate he can't menstruate we can't menstruate you can't menstruate they can't menstruate	I can't be menstruating you can't be menstruating he can't be menstruating we can't be menstruating you can't be menstruating they can't be menstruating
Perfect	V-ing perfect
I can't have menstruated you can't have menstruated he can't have menstruated we can't have menstruated you can't have menstruated they can't have menstruated	I can't have been menstruating you can't have been menstruating he can't have been menstruating we can't have been menstruating you can't have been menstruating they can't 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't I menstruate? can't you menstruate? can't he menstruate? can't we menstruate? can't you menstruate? can't they menstruate?	can't I be menstruating? can't you be menstruating? can't he be menstruating? can't we be menstruating? can't you be menstruating? can't they be menstruating?
Perfect	V-ing perfect
can't I have menstruated? can't you have menstruated? can't he have menstruated? can't we have menstruated? can't you have menstruated? can't they have menstruated?	can't I have been menstruating? can't you have been menstruating? can't he have been menstruating? can't we have been menstruating? can't you have been menstruating? can't they have been menstruating?