must fumble
Verbo regular: fumble - fumbled- fumbled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must fumble
you must fumble
he must fumble
we must fumble
you must fumble
they must fumble 	I must be fumbling
you must be fumbling
he must be fumbling
we must be fumbling
you must be fumbling
they must be fumbling	I must have fumbled
you must have fumbled
he must have fumbled
we must have fumbled
you must have fumbled
they must have fumbled	I must have been fumbling
you must have been fumbling
he must have been fumbling
we must have been fumbling
you must have been fumbling
they must have been fumbling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not fumble
you must not fumble
he must not fumble
we must not fumble
you must not fumble
they must not fumble 	I must not be fumbling
you must not be fumbling
he must not be fumbling
we must not be fumbling
you must not be fumbling
they must not be fumbling	I must not have fumbled
you must not have fumbled
he must not have fumbled
we must not have fumbled
you must not have fumbled
they must not have fumbled	I must not have been fumbling
you must not have been fumbling
he must not have been fumbling
we must not have been fumbling
you must not have been fumbling
they must not have been fumbling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I fumble?
must you fumble?
must he fumble?
must we fumble?
must you fumble?
must they fumble? 	must I be fumbling?
must you be fumbling?
must he be fumbling?
must we be fumbling?
must you be fumbling?
must they be fumbling? 	must I have fumbled?
must you have fumbled?
must he have fumbled?
must we have fumbled?
must you have fumbled?
must they have fumbled? 	must I have been fumbling?
must you have been fumbling?
must he have been fumbling?
must we have been fumbling?
must you have been fumbling?
must they have been fumbling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not fumble?
must you not fumble?
must he not fumble?
must we not fumble?
must you not fumble?
must they not fumble? 	must I not be fumbling?
must you not be fumbling?
must he not be fumbling?
must we not be fumbling?
must you not be fumbling?
must they not be fumbling? 	must I not have fumbled?
must you not have fumbled?
must he not have fumbled?
must we not have fumbled?
must you not have fumbled?
must they not have fumbled? 	must I not have been fumbling?
must you not have been fumbling?
must he not have been fumbling?
must we not have been fumbling?
must you not have been fumbling?
must they not have been fumbling?