I can boycott you can boycott he can boycott we can boycott you can boycott they can boycott
V-ing form
I can be boycotting you can be boycotting he can be boycotting we can be boycotting you can be boycotting they can be boycotting
Perfect
I can have boycotted you can have boycotted he can have boycotted we can have boycotted you can have boycotted they can have boycotted
V-ing perfect
I can have been boycotting you can have been boycotting he can have been boycotting we can have been boycotting you can have been boycotting they can have been boycotting
Negation
Simple form
I can't boycott you can't boycott he can't boycott we can't boycott you can't boycott they can't boycott
V-ing form
I can't be boycotting you can't be boycotting he can't be boycotting we can't be boycotting you can't be boycotting they can't be boycotting
Perfect
I can't have boycotted you can't have boycotted he can't have boycotted we can't have boycotted you can't have boycotted they can't have boycotted
V-ing perfect
I can't have been boycotting you can't have been boycotting he can't have been boycotting we can't have been boycotting you can't have been boycotting they can't have been boycotting
Interrogative form
Simple form
can I boycott? can you boycott? can he boycott? can we boycott? can you boycott? can they boycott?
V-ing form
can I be boycotting? can you be boycotting? can he be boycotting? can we be boycotting? can you be boycotting? can they be boycotting?
Perfect
can I have boycotted? can you have boycotted? can he have boycotted? can we have boycotted? can you have boycotted? can they have boycotted?
V-ing perfect
can I have been boycotting? can you have been boycotting? can he have been boycotting? can we have been boycotting? can you have been boycotting? can they have been boycotting?
Interro-negative form
Simple form
can't I boycott? can't you boycott? can't he boycott? can't we boycott? can't you boycott? can't they boycott?
V-ing form
can't I be boycotting? can't you be boycotting? can't he be boycotting? can't we be boycotting? can't you be boycotting? can't they be boycotting?
Perfect
can't I have boycotted? can't you have boycotted? can't he have boycotted? can't we have boycotted? can't you have boycotted? can't they have boycotted?
V-ing perfect
can't I have been boycotting? can't you have been boycotting? can't he have been boycotting? can't we have been boycotting? can't you have been boycotting? can't they have been boycotting?