would undertain
Regular verb: undertain - undertained- undertained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd undertain
you'd undertain
she'd undertain
we'd undertain
you'd undertain
they'd undertain 	I'd be undertaining
you'd be undertaining
she'd be undertaining
we'd be undertaining
you'd be undertaining
they'd be undertaining	I would've undertained
you would've undertained
she would've undertained
we would've undertained
you would've undertained
they would've undertained	I would've been undertaining
you would've been undertaining
she would've been undertaining
we would've been undertaining
you would've been undertaining
they would've been undertaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't undertain
you wouldn't undertain
she wouldn't undertain
we wouldn't undertain
you wouldn't undertain
they wouldn't undertain 	I wouldn't be undertaining
you wouldn't be undertaining
she wouldn't be undertaining
we wouldn't be undertaining
you wouldn't be undertaining
they wouldn't be undertaining	I wouldn't have undertained
you wouldn't have undertained
she wouldn't have undertained
we wouldn't have undertained
you wouldn't have undertained
they wouldn't have undertained	I wouldn't have been undertaining
you wouldn't have been undertaining
she wouldn't have been undertaining
we wouldn't have been undertaining
you wouldn't have been undertaining
they wouldn't have been undertaining	

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

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