will stumble
Regular verb: stumble - stumbled- stumbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will stumble
you will stumble
he will stumble
we will stumble
you will stumble
they will stumble 	I will be stumbling
you will be stumbling
he will be stumbling
we will be stumbling
you will be stumbling
they will be stumbling	I will have stumbled
you will have stumbled
he will have stumbled
we will have stumbled
you will have stumbled
they will have stumbled	I will have been stumbling
you will have been stumbling
he will have been stumbling
we will have been stumbling
you will have been stumbling
they will have been stumbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will not stumble
you will not stumble
he will not stumble
we will not stumble
you will not stumble
they will not stumble 	I will not be stumbling
you will not be stumbling
he will not be stumbling
we will not be stumbling
you will not be stumbling
they will not be stumbling	I will not have stumbled
you will not have stumbled
he will not have stumbled
we will not have stumbled
you will not have stumbled
they will not have stumbled	I will not have been stumbling
you will not have been stumbling
he will not have been stumbling
we will not have been stumbling
you will not have been stumbling
they will not have been stumbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I stumble?
will you stumble?
will he stumble?
will we stumble?
will you stumble?
will they stumble? 	will I be stumbling?
will you be stumbling?
will he be stumbling?
will we be stumbling?
will you be stumbling?
will they be stumbling? 	will I have stumbled?
will you have stumbled?
will he have stumbled?
will we have stumbled?
will you have stumbled?
will they have stumbled? 	will I have been stumbling?
will you have been stumbling?
will he have been stumbling?
will we have been stumbling?
will you have been stumbling?
will they have been stumbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I not stumble?
will you not stumble?
will he not stumble?
will we not stumble?
will you not stumble?
will they not stumble? 	will I not be stumbling?
will you not be stumbling?
will he not be stumbling?
will we not be stumbling?
will you not be stumbling?
will they not be stumbling? 	will I not have stumbled?
will you not have stumbled?
will he not have stumbled?
will we not have stumbled?
will you not have stumbled?
will they not have stumbled? 	will I not have been stumbling?
will you not have been stumbling?
will he not have been stumbling?
will we not have been stumbling?
will you not have been stumbling?
will they not have been stumbling?