I can whip you can whip he can whip we can whip you can whip they can whip
V-ing form
I can be whipping you can be whipping he can be whipping we can be whipping you can be whipping they can be whipping
Perfect
I can have whipped you can have whipped he can have whipped we can have whipped you can have whipped they can have whipped
V-ing perfect
I can have been whipping you can have been whipping he can have been whipping we can have been whipping you can have been whipping they can have been whipping
Negation
Simple form
I can't whip you can't whip he can't whip we can't whip you can't whip they can't whip
V-ing form
I can't be whipping you can't be whipping he can't be whipping we can't be whipping you can't be whipping they can't be whipping
Perfect
I can't have whipped you can't have whipped he can't have whipped we can't have whipped you can't have whipped they can't have whipped
V-ing perfect
I can't have been whipping you can't have been whipping he can't have been whipping we can't have been whipping you can't have been whipping they can't have been whipping
Interrogative form
Simple form
can I whip? can you whip? can he whip? can we whip? can you whip? can they whip?
V-ing form
can I be whipping? can you be whipping? can he be whipping? can we be whipping? can you be whipping? can they be whipping?
Perfect
can I have whipped? can you have whipped? can he have whipped? can we have whipped? can you have whipped? can they have whipped?
V-ing perfect
can I have been whipping? can you have been whipping? can he have been whipping? can we have been whipping? can you have been whipping? can they have been whipping?
Interro-negative form
Simple form
can't I whip? can't you whip? can't he whip? can't we whip? can't you whip? can't they whip?
V-ing form
can't I be whipping? can't you be whipping? can't he be whipping? can't we be whipping? can't you be whipping? can't they be whipping?
Perfect
can't I have whipped? can't you have whipped? can't he have whipped? can't we have whipped? can't you have whipped? can't they have whipped?
V-ing perfect
can't I have been whipping? can't you have been whipping? can't he have been whipping? can't we have been whipping? can't you have been whipping? can't they have been whipping?