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 can't rollick you can't rollick he can't rollick we can't rollick you can't rollick they can't rollick
V-ing form
I can't be rollicking you can't be rollicking he can't be rollicking we can't be rollicking you can't be rollicking they can't be rollicking
Perfect
I can't have rollicked you can't have rollicked he can't have rollicked we can't have rollicked you can't have rollicked they can't have rollicked
V-ing perfect
I can't have been rollicking you can't have been rollicking he can't have been rollicking we can't have been rollicking you can't have been rollicking they can't 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't I rollick? can't you rollick? can't he rollick? can't we rollick? can't you rollick? can't they rollick?
V-ing form
can't I be rollicking? can't you be rollicking? can't he be rollicking? can't we be rollicking? can't you be rollicking? can't they be rollicking?
Perfect
can't I have rollicked? can't you have rollicked? can't he have rollicked? can't we have rollicked? can't you have rollicked? can't they have rollicked?
V-ing perfect
can't I have been rollicking? can't you have been rollicking? can't he have been rollicking? can't we have been rollicking? can't you have been rollicking? can't they have been rollicking?