English verb conjugation
CAN MASTURBATE

Regular verb: masturbate - masturbated - masturbated

Affirmation

Simple form	V-ing form
I can masturbate you can masturbate he can masturbate we can masturbate you can masturbate they can masturbate	I can be masturbating you can be masturbating he can be masturbating we can be masturbating you can be masturbating they can be masturbating
Perfect	V-ing perfect
I can have masturbated you can have masturbated he can have masturbated we can have masturbated you can have masturbated they can have masturbated	I can have been masturbating you can have been masturbating he can have been masturbating we can have been masturbating you can have been masturbating they can have been masturbating

Negation

Simple form	V-ing form
I can't masturbate you can't masturbate he can't masturbate we can't masturbate you can't masturbate they can't masturbate	I can't be masturbating you can't be masturbating he can't be masturbating we can't be masturbating you can't be masturbating they can't be masturbating
Perfect	V-ing perfect
I can't have masturbated you can't have masturbated he can't have masturbated we can't have masturbated you can't have masturbated they can't have masturbated	I can't have been masturbating you can't have been masturbating he can't have been masturbating we can't have been masturbating you can't have been masturbating they can't have been masturbating

Interrogative form

Simple form	V-ing form
can I masturbate? can you masturbate? can he masturbate? can we masturbate? can you masturbate? can they masturbate?	can I be masturbating? can you be masturbating? can he be masturbating? can we be masturbating? can you be masturbating? can they be masturbating?
Perfect	V-ing perfect
can I have masturbated? can you have masturbated? can he have masturbated? can we have masturbated? can you have masturbated? can they have masturbated?	can I have been masturbating? can you have been masturbating? can he have been masturbating? can we have been masturbating? can you have been masturbating? can they have been masturbating?

Interro-negative form

Simple form	V-ing form
can't I masturbate? can't you masturbate? can't he masturbate? can't we masturbate? can't you masturbate? can't they masturbate?	can't I be masturbating? can't you be masturbating? can't he be masturbating? can't we be masturbating? can't you be masturbating? can't they be masturbating?
Perfect	V-ing perfect
can't I have masturbated? can't you have masturbated? can't he have masturbated? can't we have masturbated? can't you have masturbated? can't they have masturbated?	can't I have been masturbating? can't you have been masturbating? can't he have been masturbating? can't we have been masturbating? can't you have been masturbating? can't they have been masturbating?