English verb conjugation
CAN SUNDOWN

Regular verb: sundown - sundowned - sundowned

Affirmation

Simple form	V-ing form
I can sundown you can sundown he can sundown we can sundown you can sundown they can sundown	I can be sundowning you can be sundowning he can be sundowning we can be sundowning you can be sundowning they can be sundowning
Perfect	V-ing perfect
I can have sundowned you can have sundowned he can have sundowned we can have sundowned you can have sundowned they can have sundowned	I can have been sundowning you can have been sundowning he can have been sundowning we can have been sundowning you can have been sundowning they can have been sundowning

Negation

Simple form	V-ing form
I cannot sundown you cannot sundown he cannot sundown we cannot sundown you cannot sundown they cannot sundown	I cannot be sundowning you cannot be sundowning he cannot be sundowning we cannot be sundowning you cannot be sundowning they cannot be sundowning
Perfect	V-ing perfect
I cannot have sundowned you cannot have sundowned he cannot have sundowned we cannot have sundowned you cannot have sundowned they cannot have sundowned	I cannot have been sundowning you cannot have been sundowning he cannot have been sundowning we cannot have been sundowning you cannot have been sundowning they cannot have been sundowning

Interrogative form

Simple form	V-ing form
can I sundown? can you sundown? can he sundown? can we sundown? can you sundown? can they sundown?	can I be sundowning? can you be sundowning? can he be sundowning? can we be sundowning? can you be sundowning? can they be sundowning?
Perfect	V-ing perfect
can I have sundowned? can you have sundowned? can he have sundowned? can we have sundowned? can you have sundowned? can they have sundowned?	can I have been sundowning? can you have been sundowning? can he have been sundowning? can we have been sundowning? can you have been sundowning? can they have been sundowning?

Interro-negative form

Simple form	V-ing form
can I not sundown? can you not sundown? can he not sundown? can we not sundown? can you not sundown? can they not sundown?	can I not be sundowning? can you not be sundowning? can he not be sundowning? can we not be sundowning? can you not be sundowning? can they not be sundowning?
Perfect	V-ing perfect
can I not have sundowned? can you not have sundowned? can he not have sundowned? can we not have sundowned? can you not have sundowned? can they not have sundowned?	can I not have been sundowning? can you not have been sundowning? can he not have been sundowning? can we not have been sundowning? can you not have been sundowning? can they not have been sundowning?