can quibble
Regular verb: quibble - quibbled- quibbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can quibble
you can quibble
he can quibble
we can quibble
you can quibble
they can quibble 	I can be quibbling
you can be quibbling
he can be quibbling
we can be quibbling
you can be quibbling
they can be quibbling	I can have quibbled
you can have quibbled
he can have quibbled
we can have quibbled
you can have quibbled
they can have quibbled	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 	V-ing form 	Perfect 	V-ing perfect 	
I can't quibble
you can't quibble
he can't quibble
we can't quibble
you can't quibble
they can't quibble 	I can't be quibbling
you can't be quibbling
he can't be quibbling
we can't be quibbling
you can't be quibbling
they can't be quibbling	I can't have quibbled
you can't have quibbled
he can't have quibbled
we can't have quibbled
you can't have quibbled
they can't have quibbled	I can't have been quibbling
you can't have been quibbling
he can't have been quibbling
we can't have been quibbling
you can't have been quibbling
they can't have been quibbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I quibble?
can you quibble?
can he quibble?
can we quibble?
can you quibble?
can they quibble? 	can I be quibbling?
can you be quibbling?
can he be quibbling?
can we be quibbling?
can you be quibbling?
can they be quibbling? 	can I have quibbled?
can you have quibbled?
can he have quibbled?
can we have quibbled?
can you have quibbled?
can they have quibbled? 	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 	V-ing form 	Perfect 	V-ing perfect 	
can't I quibble?
can't you quibble?
can't he quibble?
can't we quibble?
can't you quibble?
can't they quibble? 	can't I be quibbling?
can't you be quibbling?
can't he be quibbling?
can't we be quibbling?
can't you be quibbling?
can't they be quibbling? 	can't I have quibbled?
can't you have quibbled?
can't he have quibbled?
can't we have quibbled?
can't you have quibbled?
can't they have quibbled? 	can't I have been quibbling?
can't you have been quibbling?
can't he have been quibbling?
can't we have been quibbling?
can't you have been quibbling?
can't they have been quibbling?