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 can't lip you can't lip he can't lip we can't lip you can't lip they can't lip	I can't be liping you can't be liping he can't be liping we can't be liping you can't be liping they can't be liping
Perfect	V-ing perfect
I can't have liped you can't have liped he can't have liped we can't have liped you can't have liped they can't have liped	I can't have been liping you can't have been liping he can't have been liping we can't have been liping you can't have been liping they can't 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't I lip? can't you lip? can't he lip? can't we lip? can't you lip? can't they lip?	can't I be liping? can't you be liping? can't he be liping? can't we be liping? can't you be liping? can't they be liping?
Perfect	V-ing perfect
can't I have liped? can't you have liped? can't he have liped? can't we have liped? can't you have liped? can't they have liped?	can't I have been liping? can't you have been liping? can't he have been liping? can't we have been liping? can't you have been liping? can't they have been liping?