I can blackmarket you can blackmarket he can blackmarket we can blackmarket you can blackmarket they can blackmarket
V-ing form
I can be blackmarketing you can be blackmarketing he can be blackmarketing we can be blackmarketing you can be blackmarketing they can be blackmarketing
Perfect
I can have blackmarketed you can have blackmarketed he can have blackmarketed we can have blackmarketed you can have blackmarketed they can have blackmarketed
V-ing perfect
I can have been blackmarketing you can have been blackmarketing he can have been blackmarketing we can have been blackmarketing you can have been blackmarketing they can have been blackmarketing
Negation
Simple form
I cannot blackmarket you cannot blackmarket he cannot blackmarket we cannot blackmarket you cannot blackmarket they cannot blackmarket
V-ing form
I cannot be blackmarketing you cannot be blackmarketing he cannot be blackmarketing we cannot be blackmarketing you cannot be blackmarketing they cannot be blackmarketing
Perfect
I cannot have blackmarketed you cannot have blackmarketed he cannot have blackmarketed we cannot have blackmarketed you cannot have blackmarketed they cannot have blackmarketed
V-ing perfect
I cannot have been blackmarketing you cannot have been blackmarketing he cannot have been blackmarketing we cannot have been blackmarketing you cannot have been blackmarketing they cannot have been blackmarketing
Interrogative form
Simple form
can I blackmarket? can you blackmarket? can he blackmarket? can we blackmarket? can you blackmarket? can they blackmarket?
V-ing form
can I be blackmarketing? can you be blackmarketing? can he be blackmarketing? can we be blackmarketing? can you be blackmarketing? can they be blackmarketing?
Perfect
can I have blackmarketed? can you have blackmarketed? can he have blackmarketed? can we have blackmarketed? can you have blackmarketed? can they have blackmarketed?
V-ing perfect
can I have been blackmarketing? can you have been blackmarketing? can he have been blackmarketing? can we have been blackmarketing? can you have been blackmarketing? can they have been blackmarketing?
Interro-negative form
Simple form
can I not blackmarket? can you not blackmarket? can he not blackmarket? can we not blackmarket? can you not blackmarket? can they not blackmarket?
V-ing form
can I not be blackmarketing? can you not be blackmarketing? can he not be blackmarketing? can we not be blackmarketing? can you not be blackmarketing? can they not be blackmarketing?
Perfect
can I not have blackmarketed? can you not have blackmarketed? can he not have blackmarketed? can we not have blackmarketed? can you not have blackmarketed? can they not have blackmarketed?
V-ing perfect
can I not have been blackmarketing? can you not have been blackmarketing? can he not have been blackmarketing? can we not have been blackmarketing? can you not have been blackmarketing? can they not have been blackmarketing?