I can brux you can brux he can brux we can brux you can brux they can brux
V-ing form
I can be bruxing you can be bruxing he can be bruxing we can be bruxing you can be bruxing they can be bruxing
Perfect
I can have bruxed you can have bruxed he can have bruxed we can have bruxed you can have bruxed they can have bruxed
V-ing perfect
I can have been bruxing you can have been bruxing he can have been bruxing we can have been bruxing you can have been bruxing they can have been bruxing
Negation
Simple form
I can't brux you can't brux he can't brux we can't brux you can't brux they can't brux
V-ing form
I can't be bruxing you can't be bruxing he can't be bruxing we can't be bruxing you can't be bruxing they can't be bruxing
Perfect
I can't have bruxed you can't have bruxed he can't have bruxed we can't have bruxed you can't have bruxed they can't have bruxed
V-ing perfect
I can't have been bruxing you can't have been bruxing he can't have been bruxing we can't have been bruxing you can't have been bruxing they can't have been bruxing
Interrogative form
Simple form
can I brux? can you brux? can he brux? can we brux? can you brux? can they brux?
V-ing form
can I be bruxing? can you be bruxing? can he be bruxing? can we be bruxing? can you be bruxing? can they be bruxing?
Perfect
can I have bruxed? can you have bruxed? can he have bruxed? can we have bruxed? can you have bruxed? can they have bruxed?
V-ing perfect
can I have been bruxing? can you have been bruxing? can he have been bruxing? can we have been bruxing? can you have been bruxing? can they have been bruxing?
Interro-negative form
Simple form
can't I brux? can't you brux? can't he brux? can't we brux? can't you brux? can't they brux?
V-ing form
can't I be bruxing? can't you be bruxing? can't he be bruxing? can't we be bruxing? can't you be bruxing? can't they be bruxing?
Perfect
can't I have bruxed? can't you have bruxed? can't he have bruxed? can't we have bruxed? can't you have bruxed? can't they have bruxed?
V-ing perfect
can't I have been bruxing? can't you have been bruxing? can't he have been bruxing? can't we have been bruxing? can't you have been bruxing? can't they have been bruxing?