I can scheme you can scheme she can scheme we can scheme you can scheme they can scheme
V-ing form
I can be scheming you can be scheming she can be scheming we can be scheming you can be scheming they can be scheming
Perfect
I can have schemed you can have schemed she can have schemed we can have schemed you can have schemed they can have schemed
V-ing perfect
I can have been scheming you can have been scheming she can have been scheming we can have been scheming you can have been scheming they can have been scheming
Negation
Simple form
I cannot scheme you cannot scheme she cannot scheme we cannot scheme you cannot scheme they cannot scheme
V-ing form
I cannot be scheming you cannot be scheming she cannot be scheming we cannot be scheming you cannot be scheming they cannot be scheming
Perfect
I cannot have schemed you cannot have schemed she cannot have schemed we cannot have schemed you cannot have schemed they cannot have schemed
V-ing perfect
I cannot have been scheming you cannot have been scheming she cannot have been scheming we cannot have been scheming you cannot have been scheming they cannot have been scheming
Interrogative form
Simple form
can I scheme? can you scheme? can she scheme? can we scheme? can you scheme? can they scheme?
V-ing form
can I be scheming? can you be scheming? can she be scheming? can we be scheming? can you be scheming? can they be scheming?
Perfect
can I have schemed? can you have schemed? can she have schemed? can we have schemed? can you have schemed? can they have schemed?
V-ing perfect
can I have been scheming? can you have been scheming? can she have been scheming? can we have been scheming? can you have been scheming? can they have been scheming?
Interro-negative form
Simple form
can I not scheme? can you not scheme? can she not scheme? can we not scheme? can you not scheme? can they not scheme?
V-ing form
can I not be scheming? can you not be scheming? can she not be scheming? can we not be scheming? can you not be scheming? can they not be scheming?
Perfect
can I not have schemed? can you not have schemed? can she not have schemed? can we not have schemed? can you not have schemed? can they not have schemed?
V-ing perfect
can I not have been scheming? can you not have been scheming? can she not have been scheming? can we not have been scheming? can you not have been scheming? can they not have been scheming?