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 cannot boycott you cannot boycott he cannot boycott we cannot boycott you cannot boycott they cannot boycott
V-ing form
I cannot be boycotting you cannot be boycotting he cannot be boycotting we cannot be boycotting you cannot be boycotting they cannot be boycotting
Perfect
I cannot have boycotted you cannot have boycotted he cannot have boycotted we cannot have boycotted you cannot have boycotted they cannot have boycotted
V-ing perfect
I cannot have been boycotting you cannot have been boycotting he cannot have been boycotting we cannot have been boycotting you cannot have been boycotting they cannot 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 I not boycott? can you not boycott? can he not boycott? can we not boycott? can you not boycott? can they not boycott?
V-ing form
can I not be boycotting? can you not be boycotting? can he not be boycotting? can we not be boycotting? can you not be boycotting? can they not be boycotting?
Perfect
can I not have boycotted? can you not have boycotted? can he not have boycotted? can we not have boycotted? can you not have boycotted? can they not have boycotted?
V-ing perfect
can I not have been boycotting? can you not have been boycotting? can he not have been boycotting? can we not have been boycotting? can you not have been boycotting? can they not have been boycotting?