English verb conjugation
CAN CLEAN

Regular verb: clean - cleaned - cleaned

Affirmation

Simple form	V-ing form
I can clean you can clean she can clean we can clean you can clean they can clean	I can be cleaning you can be cleaning she can be cleaning we can be cleaning you can be cleaning they can be cleaning
Perfect	V-ing perfect
I can have cleaned you can have cleaned she can have cleaned we can have cleaned you can have cleaned they can have cleaned	I can have been cleaning you can have been cleaning she can have been cleaning we can have been cleaning you can have been cleaning they can have been cleaning

Negation

Simple form	V-ing form
I can't clean you can't clean she can't clean we can't clean you can't clean they can't clean	I can't be cleaning you can't be cleaning she can't be cleaning we can't be cleaning you can't be cleaning they can't be cleaning
Perfect	V-ing perfect
I can't have cleaned you can't have cleaned she can't have cleaned we can't have cleaned you can't have cleaned they can't have cleaned	I can't have been cleaning you can't have been cleaning she can't have been cleaning we can't have been cleaning you can't have been cleaning they can't have been cleaning

Interrogative form

Simple form	V-ing form
can I clean? can you clean? can she clean? can we clean? can you clean? can they clean?	can I be cleaning? can you be cleaning? can she be cleaning? can we be cleaning? can you be cleaning? can they be cleaning?
Perfect	V-ing perfect
can I have cleaned? can you have cleaned? can she have cleaned? can we have cleaned? can you have cleaned? can they have cleaned?	can I have been cleaning? can you have been cleaning? can she have been cleaning? can we have been cleaning? can you have been cleaning? can they have been cleaning?

Interro-negative form

Simple form	V-ing form
can't I clean? can't you clean? can't she clean? can't we clean? can't you clean? can't they clean?	can't I be cleaning? can't you be cleaning? can't she be cleaning? can't we be cleaning? can't you be cleaning? can't they be cleaning?
Perfect	V-ing perfect
can't I have cleaned? can't you have cleaned? can't she have cleaned? can't we have cleaned? can't you have cleaned? can't they have cleaned?	can't I have been cleaning? can't you have been cleaning? can't she have been cleaning? can't we have been cleaning? can't you have been cleaning? can't they have been cleaning?