I can brag you can brag he can brag we can brag you can brag they can brag
V-ing form
I can be bragging you can be bragging he can be bragging we can be bragging you can be bragging they can be bragging
Perfect
I can have bragged you can have bragged he can have bragged we can have bragged you can have bragged they can have bragged
V-ing perfect
I can have been bragging you can have been bragging he can have been bragging we can have been bragging you can have been bragging they can have been bragging
Negation
Simple form
I can't brag you can't brag he can't brag we can't brag you can't brag they can't brag
V-ing form
I can't be bragging you can't be bragging he can't be bragging we can't be bragging you can't be bragging they can't be bragging
Perfect
I can't have bragged you can't have bragged he can't have bragged we can't have bragged you can't have bragged they can't have bragged
V-ing perfect
I can't have been bragging you can't have been bragging he can't have been bragging we can't have been bragging you can't have been bragging they can't have been bragging
Interrogative form
Simple form
can I brag? can you brag? can he brag? can we brag? can you brag? can they brag?
V-ing form
can I be bragging? can you be bragging? can he be bragging? can we be bragging? can you be bragging? can they be bragging?
Perfect
can I have bragged? can you have bragged? can he have bragged? can we have bragged? can you have bragged? can they have bragged?
V-ing perfect
can I have been bragging? can you have been bragging? can he have been bragging? can we have been bragging? can you have been bragging? can they have been bragging?
Interro-negative form
Simple form
can't I brag? can't you brag? can't he brag? can't we brag? can't you brag? can't they brag?
V-ing form
can't I be bragging? can't you be bragging? can't he be bragging? can't we be bragging? can't you be bragging? can't they be bragging?
Perfect
can't I have bragged? can't you have bragged? can't he have bragged? can't we have bragged? can't you have bragged? can't they have bragged?
V-ing perfect
can't I have been bragging? can't you have been bragging? can't he have been bragging? can't we have been bragging? can't you have been bragging? can't they have been bragging?