English verb conjugation
CAN FLOSS

Regular verb: floss - flossed - flossed

Affirmation

Simple form	V-ing form
I can floss you can floss he can floss we can floss you can floss they can floss	I can be flossing you can be flossing he can be flossing we can be flossing you can be flossing they can be flossing
Perfect	V-ing perfect
I can have flossed you can have flossed he can have flossed we can have flossed you can have flossed they can have flossed	I can have been flossing you can have been flossing he can have been flossing we can have been flossing you can have been flossing they can have been flossing

Negation

Simple form	V-ing form
I cannot floss you cannot floss he cannot floss we cannot floss you cannot floss they cannot floss	I cannot be flossing you cannot be flossing he cannot be flossing we cannot be flossing you cannot be flossing they cannot be flossing
Perfect	V-ing perfect
I cannot have flossed you cannot have flossed he cannot have flossed we cannot have flossed you cannot have flossed they cannot have flossed	I cannot have been flossing you cannot have been flossing he cannot have been flossing we cannot have been flossing you cannot have been flossing they cannot have been flossing

Interrogative form

Simple form	V-ing form
can I floss? can you floss? can he floss? can we floss? can you floss? can they floss?	can I be flossing? can you be flossing? can he be flossing? can we be flossing? can you be flossing? can they be flossing?
Perfect	V-ing perfect
can I have flossed? can you have flossed? can he have flossed? can we have flossed? can you have flossed? can they have flossed?	can I have been flossing? can you have been flossing? can he have been flossing? can we have been flossing? can you have been flossing? can they have been flossing?

Interro-negative form

Simple form	V-ing form
can I not floss? can you not floss? can he not floss? can we not floss? can you not floss? can they not floss?	can I not be flossing? can you not be flossing? can he not be flossing? can we not be flossing? can you not be flossing? can they not be flossing?
Perfect	V-ing perfect
can I not have flossed? can you not have flossed? can he not have flossed? can we not have flossed? can you not have flossed? can they not have flossed?	can I not have been flossing? can you not have been flossing? can he not have been flossing? can we not have been flossing? can you not have been flossing? can they not have been flossing?