will mumble
Regular verb: mumble - mumbled- mumbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will mumble
you will mumble
he will mumble
we will mumble
you will mumble
they will mumble 	I will be mumbling
you will be mumbling
he will be mumbling
we will be mumbling
you will be mumbling
they will be mumbling	I will have mumbled
you will have mumbled
he will have mumbled
we will have mumbled
you will have mumbled
they will have mumbled	I will have been mumbling
you will have been mumbling
he will have been mumbling
we will have been mumbling
you will have been mumbling
they will have been mumbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will not mumble
you will not mumble
he will not mumble
we will not mumble
you will not mumble
they will not mumble 	I will not be mumbling
you will not be mumbling
he will not be mumbling
we will not be mumbling
you will not be mumbling
they will not be mumbling	I will not have mumbled
you will not have mumbled
he will not have mumbled
we will not have mumbled
you will not have mumbled
they will not have mumbled	I will not have been mumbling
you will not have been mumbling
he will not have been mumbling
we will not have been mumbling
you will not have been mumbling
they will not have been mumbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I mumble?
will you mumble?
will he mumble?
will we mumble?
will you mumble?
will they mumble? 	will I be mumbling?
will you be mumbling?
will he be mumbling?
will we be mumbling?
will you be mumbling?
will they be mumbling? 	will I have mumbled?
will you have mumbled?
will he have mumbled?
will we have mumbled?
will you have mumbled?
will they have mumbled? 	will I have been mumbling?
will you have been mumbling?
will he have been mumbling?
will we have been mumbling?
will you have been mumbling?
will they have been mumbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I not mumble?
will you not mumble?
will he not mumble?
will we not mumble?
will you not mumble?
will they not mumble? 	will I not be mumbling?
will you not be mumbling?
will he not be mumbling?
will we not be mumbling?
will you not be mumbling?
will they not be mumbling? 	will I not have mumbled?
will you not have mumbled?
will he not have mumbled?
will we not have mumbled?
will you not have mumbled?
will they not have mumbled? 	will I not have been mumbling?
will you not have been mumbling?
will he not have been mumbling?
will we not have been mumbling?
will you not have been mumbling?
will they not have been mumbling?