I can clip you can clip he can clip we can clip you can clip they can clip
V-ing form
I can be clipping you can be clipping he can be clipping we can be clipping you can be clipping they can be clipping
Perfect
I can have clipped you can have clipped he can have clipped we can have clipped you can have clipped they can have clipped
V-ing perfect
I can have been clipping you can have been clipping he can have been clipping we can have been clipping you can have been clipping they can have been clipping
Negation
Simple form
I can't clip you can't clip he can't clip we can't clip you can't clip they can't clip
V-ing form
I can't be clipping you can't be clipping he can't be clipping we can't be clipping you can't be clipping they can't be clipping
Perfect
I can't have clipped you can't have clipped he can't have clipped we can't have clipped you can't have clipped they can't have clipped
V-ing perfect
I can't have been clipping you can't have been clipping he can't have been clipping we can't have been clipping you can't have been clipping they can't have been clipping
Interrogative form
Simple form
can I clip? can you clip? can he clip? can we clip? can you clip? can they clip?
V-ing form
can I be clipping? can you be clipping? can he be clipping? can we be clipping? can you be clipping? can they be clipping?
Perfect
can I have clipped? can you have clipped? can he have clipped? can we have clipped? can you have clipped? can they have clipped?
V-ing perfect
can I have been clipping? can you have been clipping? can he have been clipping? can we have been clipping? can you have been clipping? can they have been clipping?
Interro-negative form
Simple form
can't I clip? can't you clip? can't he clip? can't we clip? can't you clip? can't they clip?
V-ing form
can't I be clipping? can't you be clipping? can't he be clipping? can't we be clipping? can't you be clipping? can't they be clipping?
Perfect
can't I have clipped? can't you have clipped? can't he have clipped? can't we have clipped? can't you have clipped? can't they have clipped?
V-ing perfect
can't I have been clipping? can't you have been clipping? can't he have been clipping? can't we have been clipping? can't you have been clipping? can't they have been clipping?