ought to undertain
Verbo regolare: undertain - undertained- undertained

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought to undertain
you ought to undertain
he ought to undertain
we ought to undertain
you ought to undertain
they ought to undertain 	I ought to be undertaining
you ought to be undertaining
he ought to be undertaining
we ought to be undertaining
you ought to be undertaining
they ought to be undertaining	I ought to have undertained
you ought to have undertained
he ought to have undertained
we ought to have undertained
you ought to have undertained
they ought to have undertained	I ought to have been undertaining
you ought to have been undertaining
he ought to have been undertaining
we ought to have been undertaining
you ought to have been undertaining
they ought to have been undertaining	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought not to undertain
you ought not to undertain
he ought not to undertain
we ought not to undertain
you ought not to undertain
they ought not to undertain 	I ought not to undertaining
you ought not to undertaining
he ought not to undertaining
we ought not to undertaining
you ought not to undertaining
they ought not to undertaining	I ought not to have undertained
you ought not to have undertained
he ought not to have undertained
we ought not to have undertained
you ought not to have undertained
they ought not to have undertained	I ought not to have been undertaining
you ought not to have been undertaining
he ought not to have been undertaining
we ought not to have been undertaining
you ought not to have been undertaining
they ought not to have been undertaining	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought to I undertain?
ought to you undertain?
ought to he undertain?
ought to we undertain?
ought to you undertain?
ought to they undertain? 	ought to I be undertaining?
ought to you be undertaining?
ought to he be undertaining?
ought to we be undertaining?
ought to you be undertaining?
ought to they be undertaining? 	ought to I have undertained?
ought to you have undertained?
ought to he have undertained?
ought to we have undertained?
ought to you have undertained?
ought to they have undertained? 	ought to I have been undertaining?
ought to you have been undertaining?
ought to he have been undertaining?
ought to we have been undertaining?
ought to you have been undertaining?
ought to they have been undertaining? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought I not to undertain?
ought you not to undertain?
ought he not to undertain?
ought we not to undertain?
ought you not to undertain?
ought they not to undertain? 	ought I not to be undertaining?
ought you not to be undertaining?
ought he not to be undertaining?
ought we not to be undertaining?
ought you not to be undertaining?
ought they not to be undertaining? 	ought I not to have undertained?
ought you not to have undertained?
ought he not to have undertained?
ought we not to have undertained?
ought you not to have undertained?
ought they not to have undertained? 	ought I not to have been undertaining?
ought you not to have been undertaining?
ought he not to have been undertaining?
ought we not to have been undertaining?
ought you not to have been undertaining?
ought they not to have been undertaining?