English verb conjugation
CAN SUMMIT

Regular verb: summit - summited - summited

Affirmation

Simple form	V-ing form
I can summit you can summit he can summit we can summit you can summit they can summit	I can be summiting you can be summiting he can be summiting we can be summiting you can be summiting they can be summiting
Perfect	V-ing perfect
I can have summited you can have summited he can have summited we can have summited you can have summited they can have summited	I can have been summiting you can have been summiting he can have been summiting we can have been summiting you can have been summiting they can have been summiting

Negation

Simple form	V-ing form
I can't summit you can't summit he can't summit we can't summit you can't summit they can't summit	I can't be summiting you can't be summiting he can't be summiting we can't be summiting you can't be summiting they can't be summiting
Perfect	V-ing perfect
I can't have summited you can't have summited he can't have summited we can't have summited you can't have summited they can't have summited	I can't have been summiting you can't have been summiting he can't have been summiting we can't have been summiting you can't have been summiting they can't have been summiting

Interrogative form

Simple form	V-ing form
can I summit? can you summit? can he summit? can we summit? can you summit? can they summit?	can I be summiting? can you be summiting? can he be summiting? can we be summiting? can you be summiting? can they be summiting?
Perfect	V-ing perfect
can I have summited? can you have summited? can he have summited? can we have summited? can you have summited? can they have summited?	can I have been summiting? can you have been summiting? can he have been summiting? can we have been summiting? can you have been summiting? can they have been summiting?

Interro-negative form

Simple form	V-ing form
can't I summit? can't you summit? can't he summit? can't we summit? can't you summit? can't they summit?	can't I be summiting? can't you be summiting? can't he be summiting? can't we be summiting? can't you be summiting? can't they be summiting?
Perfect	V-ing perfect
can't I have summited? can't you have summited? can't he have summited? can't we have summited? can't you have summited? can't they have summited?	can't I have been summiting? can't you have been summiting? can't he have been summiting? can't we have been summiting? can't you have been summiting? can't they have been summiting?