may fumble
Regular verb: fumble - fumbled- fumbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may fumble
you may fumble
he may fumble
we may fumble
you may fumble
they may fumble 	I may be fumbling
you may be fumbling
he may be fumbling
we may be fumbling
you may be fumbling
they may be fumbling	I may have fumbled
you may have fumbled
he may have fumbled
we may have fumbled
you may have fumbled
they may have fumbled	I may have been fumbling
you may have been fumbling
he may have been fumbling
we may have been fumbling
you may have been fumbling
they may have been fumbling	

Negation 	
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I may not fumble
you may not fumble
he may not fumble
we may not fumble
you may not fumble
they may not fumble 	I may not be fumbling
you may not be fumbling
he may not be fumbling
we may not be fumbling
you may not be fumbling
they may not be fumbling	I may not have fumbled
you may not have fumbled
he may not have fumbled
we may not have fumbled
you may not have fumbled
they may not have fumbled	I may not have been fumbling
you may not have been fumbling
he may not have been fumbling
we may not have been fumbling
you may not have been fumbling
they may not have been fumbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I fumble?
may you fumble?
may he fumble?
may we fumble?
may you fumble?
may they fumble? 	may I be fumbling?
may you be fumbling?
may he be fumbling?
may we be fumbling?
may you be fumbling?
may they be fumbling? 	may I have fumbled?
may you have fumbled?
may he have fumbled?
may we have fumbled?
may you have fumbled?
may they have fumbled? 	may I have been fumbling?
may you have been fumbling?
may he have been fumbling?
may we have been fumbling?
may you have been fumbling?
may they have been fumbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not fumble?
may you not fumble?
may he not fumble?
may we not fumble?
may you not fumble?
may they not fumble? 	may I not be fumbling?
may you not be fumbling?
may he not be fumbling?
may we not be fumbling?
may you not be fumbling?
may they not be fumbling? 	may I not have fumbled?
may you not have fumbled?
may he not have fumbled?
may we not have fumbled?
may you not have fumbled?
may they not have fumbled? 	may I not have been fumbling?
may you not have been fumbling?
may he not have been fumbling?
may we not have been fumbling?
may you not have been fumbling?
may they not have been fumbling?