English verb conjugation
CAN SIUM

Regular verb: sium - siumed - siumed

Affirmation

Simple form	V-ing form
I can sium you can sium he can sium we can sium you can sium they can sium	I can be siuming you can be siuming he can be siuming we can be siuming you can be siuming they can be siuming
Perfect	V-ing perfect
I can have siumed you can have siumed he can have siumed we can have siumed you can have siumed they can have siumed	I can have been siuming you can have been siuming he can have been siuming we can have been siuming you can have been siuming they can have been siuming

Negation

Simple form	V-ing form
I cannot sium you cannot sium he cannot sium we cannot sium you cannot sium they cannot sium	I cannot be siuming you cannot be siuming he cannot be siuming we cannot be siuming you cannot be siuming they cannot be siuming
Perfect	V-ing perfect
I cannot have siumed you cannot have siumed he cannot have siumed we cannot have siumed you cannot have siumed they cannot have siumed	I cannot have been siuming you cannot have been siuming he cannot have been siuming we cannot have been siuming you cannot have been siuming they cannot have been siuming

Interrogative form

Simple form	V-ing form
can I sium? can you sium? can he sium? can we sium? can you sium? can they sium?	can I be siuming? can you be siuming? can he be siuming? can we be siuming? can you be siuming? can they be siuming?
Perfect	V-ing perfect
can I have siumed? can you have siumed? can he have siumed? can we have siumed? can you have siumed? can they have siumed?	can I have been siuming? can you have been siuming? can he have been siuming? can we have been siuming? can you have been siuming? can they have been siuming?

Interro-negative form

Simple form	V-ing form
can I not sium? can you not sium? can he not sium? can we not sium? can you not sium? can they not sium?	can I not be siuming? can you not be siuming? can he not be siuming? can we not be siuming? can you not be siuming? can they not be siuming?
Perfect	V-ing perfect
can I not have siumed? can you not have siumed? can he not have siumed? can we not have siumed? can you not have siumed? can they not have siumed?	can I not have been siuming? can you not have been siuming? can he not have been siuming? can we not have been siuming? can you not have been siuming? can they not have been siuming?