will undertain
Regular verb: undertain - undertained- undertained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will undertain
you will undertain
she will undertain
we will undertain
you will undertain
they will undertain 	I will be undertaining
you will be undertaining
she will be undertaining
we will be undertaining
you will be undertaining
they will be undertaining	I will have undertained
you will have undertained
she will have undertained
we will have undertained
you will have undertained
they will have undertained	I will have been undertaining
you will have been undertaining
she will have been undertaining
we will have been undertaining
you will have been undertaining
they will have been undertaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will not undertain
you will not undertain
she will not undertain
we will not undertain
you will not undertain
they will not undertain 	I will not be undertaining
you will not be undertaining
she will not be undertaining
we will not be undertaining
you will not be undertaining
they will not be undertaining	I will not have undertained
you will not have undertained
she will not have undertained
we will not have undertained
you will not have undertained
they will not have undertained	I will not have been undertaining
you will not have been undertaining
she will not have been undertaining
we will not have been undertaining
you will not have been undertaining
they will not have been undertaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I undertain?
will you undertain?
will she undertain?
will we undertain?
will you undertain?
will they undertain? 	will I be undertaining?
will you be undertaining?
will she be undertaining?
will we be undertaining?
will you be undertaining?
will they be undertaining? 	will I have undertained?
will you have undertained?
will she have undertained?
will we have undertained?
will you have undertained?
will they have undertained? 	will I have been undertaining?
will you have been undertaining?
will she have been undertaining?
will we have been undertaining?
will you have been undertaining?
will they have been undertaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I not undertain?
will you not undertain?
will she not undertain?
will we not undertain?
will you not undertain?
will they not undertain? 	will I not be undertaining?
will you not be undertaining?
will she not be undertaining?
will we not be undertaining?
will you not be undertaining?
will they not be undertaining? 	will I not have undertained?
will you not have undertained?
will she not have undertained?
will we not have undertained?
will you not have undertained?
will they not have undertained? 	will I not have been undertaining?
will you not have been undertaining?
will she not have been undertaining?
will we not have been undertaining?
will you not have been undertaining?
will they not have been undertaining?