may quibble
Regular verb: quibble - quibbled- quibbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may quibble
you may quibble
he may quibble
we may quibble
you may quibble
they may quibble 	I may be quibbling
you may be quibbling
he may be quibbling
we may be quibbling
you may be quibbling
they may be quibbling	I may have quibbled
you may have quibbled
he may have quibbled
we may have quibbled
you may have quibbled
they may have quibbled	I may have been quibbling
you may have been quibbling
he may have been quibbling
we may have been quibbling
you may have been quibbling
they may have been quibbling	

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

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I quibble?
may you quibble?
may he quibble?
may we quibble?
may you quibble?
may they quibble? 	may I be quibbling?
may you be quibbling?
may he be quibbling?
may we be quibbling?
may you be quibbling?
may they be quibbling? 	may I have quibbled?
may you have quibbled?
may he have quibbled?
may we have quibbled?
may you have quibbled?
may they have quibbled? 	may I have been quibbling?
may you have been quibbling?
may he have been quibbling?
may we have been quibbling?
may you have been quibbling?
may they have been quibbling? 	

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