I can rollick you can rollick he can rollick we can rollick you can rollick they can rollick
V-ing form
I can be rollicking you can be rollicking he can be rollicking we can be rollicking you can be rollicking they can be rollicking
Perfect
I can have rollicked you can have rollicked he can have rollicked we can have rollicked you can have rollicked they can have rollicked
V-ing perfect
I can have been rollicking you can have been rollicking he can have been rollicking we can have been rollicking you can have been rollicking they can have been rollicking
Negation
Simple form
I cannot rollick you cannot rollick he cannot rollick we cannot rollick you cannot rollick they cannot rollick
V-ing form
I cannot be rollicking you cannot be rollicking he cannot be rollicking we cannot be rollicking you cannot be rollicking they cannot be rollicking
Perfect
I cannot have rollicked you cannot have rollicked he cannot have rollicked we cannot have rollicked you cannot have rollicked they cannot have rollicked
V-ing perfect
I cannot have been rollicking you cannot have been rollicking he cannot have been rollicking we cannot have been rollicking you cannot have been rollicking they cannot have been rollicking
Interrogative form
Simple form
can I rollick? can you rollick? can he rollick? can we rollick? can you rollick? can they rollick?
V-ing form
can I be rollicking? can you be rollicking? can he be rollicking? can we be rollicking? can you be rollicking? can they be rollicking?
Perfect
can I have rollicked? can you have rollicked? can he have rollicked? can we have rollicked? can you have rollicked? can they have rollicked?
V-ing perfect
can I have been rollicking? can you have been rollicking? can he have been rollicking? can we have been rollicking? can you have been rollicking? can they have been rollicking?
Interro-negative form
Simple form
can I not rollick? can you not rollick? can he not rollick? can we not rollick? can you not rollick? can they not rollick?
V-ing form
can I not be rollicking? can you not be rollicking? can he not be rollicking? can we not be rollicking? can you not be rollicking? can they not be rollicking?
Perfect
can I not have rollicked? can you not have rollicked? can he not have rollicked? can we not have rollicked? can you not have rollicked? can they not have rollicked?
V-ing perfect
can I not have been rollicking? can you not have been rollicking? can he not have been rollicking? can we not have been rollicking? can you not have been rollicking? can they not have been rollicking?