shall undertain
Verbo regular: undertain - undertained- undertained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'll undertain
you'll undertain
she'll undertain
we'll undertain
you'll undertain
they'll undertain 	I'll be undertaining
you'll be undertaining
she'll be undertaining
we'll be undertaining
you'll be undertaining
they'll be undertaining	I'll have undertained
you'll have undertained
she'll have undertained
we'll have undertained
you'll have undertained
they'll have undertained	I'll have been undertaining
you'll have been undertaining
she'll have been undertaining
we'll have been undertaining
you'll have been undertaining
they'll have been undertaining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shan't undertain
you shan't undertain
she shan't undertain
we shan't undertain
you shan't undertain
they shan't undertain 	I shan't be undertaining
you shan't be undertaining
she shan't be undertaining
we shan't be undertaining
you shan't be undertaining
they shan't be undertaining	I shan't have undertained
you shan't have undertained
she shan't have undertained
we shan't have undertained
you shan't have undertained
they shan't have undertained	I shan't have been undertaining
you shan't have been undertaining
she shan't have been undertaining
we shan't have been undertaining
you shan't have been undertaining
they shan't have been undertaining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I undertain?
shall you undertain?
shall she undertain?
shall we undertain?
shall you undertain?
shall they undertain? 	shall I be undertaining?
shall you be undertaining?
shall she be undertaining?
shall we be undertaining?
shall you be undertaining?
shall they be undertaining? 	shall I have undertained?
shall you have undertained?
shall she have undertained?
shall we have undertained?
shall you have undertained?
shall they have undertained? 	shall I have been undertaining?
shall you have been undertaining?
shall she have been undertaining?
shall we have been undertaining?
shall you have been undertaining?
shall they have been undertaining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shan't I undertain?
shan't you undertain?
shan't she undertain?
shan't we undertain?
shan't you undertain?
shan't they undertain? 	shan't I be undertaining?
shan't you be undertaining?
shan't she be undertaining?
shan't we be undertaining?
shan't you be undertaining?
shan't they be undertaining? 	shan't I have undertained?
shan't you have undertained?
shan't she have undertained?
shan't we have undertained?
shan't you have undertained?
shan't they have undertained? 	shan't I have been undertaining?
shan't you have been undertaining?
shan't she have been undertaining?
shan't we have been undertaining?
shan't you have been undertaining?
shan't they have been undertaining?