I can quibble you can quibble he can quibble we can quibble you can quibble they can quibble
V-ing form
I can be quibbling you can be quibbling he can be quibbling we can be quibbling you can be quibbling they can be quibbling
Perfect
I can have quibbled you can have quibbled he can have quibbled we can have quibbled you can have quibbled they can have quibbled
V-ing perfect
I can have been quibbling you can have been quibbling he can have been quibbling we can have been quibbling you can have been quibbling they can have been quibbling
Negation
Simple form
I cannot quibble you cannot quibble he cannot quibble we cannot quibble you cannot quibble they cannot quibble
V-ing form
I cannot be quibbling you cannot be quibbling he cannot be quibbling we cannot be quibbling you cannot be quibbling they cannot be quibbling
Perfect
I cannot have quibbled you cannot have quibbled he cannot have quibbled we cannot have quibbled you cannot have quibbled they cannot have quibbled
V-ing perfect
I cannot have been quibbling you cannot have been quibbling he cannot have been quibbling we cannot have been quibbling you cannot have been quibbling they cannot have been quibbling
Interrogative form
Simple form
can I quibble? can you quibble? can he quibble? can we quibble? can you quibble? can they quibble?
V-ing form
can I be quibbling? can you be quibbling? can he be quibbling? can we be quibbling? can you be quibbling? can they be quibbling?
Perfect
can I have quibbled? can you have quibbled? can he have quibbled? can we have quibbled? can you have quibbled? can they have quibbled?
V-ing perfect
can I have been quibbling? can you have been quibbling? can he have been quibbling? can we have been quibbling? can you have been quibbling? can they have been quibbling?
Interro-negative form
Simple form
can I not quibble? can you not quibble? can he not quibble? can we not quibble? can you not quibble? can they not quibble?
V-ing form
can I not be quibbling? can you not be quibbling? can he not be quibbling? can we not be quibbling? can you not be quibbling? can they not be quibbling?
Perfect
can I not have quibbled? can you not have quibbled? can he not have quibbled? can we not have quibbled? can you not have quibbled? can they not have quibbled?
V-ing perfect
can I not have been quibbling? can you not have been quibbling? can he not have been quibbling? can we not have been quibbling? can you not have been quibbling? can they not have been quibbling?