English verb conjugation
CAN LIP

Regular verb: lip - liped - liped

Affirmation

Simple form	V-ing form
I can lip you can lip he can lip we can lip you can lip they can lip	I can be liping you can be liping he can be liping we can be liping you can be liping they can be liping
Perfect	V-ing perfect
I can have liped you can have liped he can have liped we can have liped you can have liped they can have liped	I can have been liping you can have been liping he can have been liping we can have been liping you can have been liping they can have been liping

Negation

Simple form	V-ing form
I cannot lip you cannot lip he cannot lip we cannot lip you cannot lip they cannot lip	I cannot be liping you cannot be liping he cannot be liping we cannot be liping you cannot be liping they cannot be liping
Perfect	V-ing perfect
I cannot have liped you cannot have liped he cannot have liped we cannot have liped you cannot have liped they cannot have liped	I cannot have been liping you cannot have been liping he cannot have been liping we cannot have been liping you cannot have been liping they cannot have been liping

Interrogative form

Simple form	V-ing form
can I lip? can you lip? can he lip? can we lip? can you lip? can they lip?	can I be liping? can you be liping? can he be liping? can we be liping? can you be liping? can they be liping?
Perfect	V-ing perfect
can I have liped? can you have liped? can he have liped? can we have liped? can you have liped? can they have liped?	can I have been liping? can you have been liping? can he have been liping? can we have been liping? can you have been liping? can they have been liping?

Interro-negative form

Simple form	V-ing form
can I not lip? can you not lip? can he not lip? can we not lip? can you not lip? can they not lip?	can I not be liping? can you not be liping? can he not be liping? can we not be liping? can you not be liping? can they not be liping?
Perfect	V-ing perfect
can I not have liped? can you not have liped? can he not have liped? can we not have liped? can you not have liped? can they not have liped?	can I not have been liping? can you not have been liping? can he not have been liping? can we not have been liping? can you not have been liping? can they not have been liping?