ought to preascertain
Regelmä&szlig;iges Verb: preascertain - preascertained- preascertained

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I ought to preascertain
you ought to preascertain
she ought to preascertain
we ought to preascertain
you ought to preascertain
they ought to preascertain 	I ought to be preascertaining
you ought to be preascertaining
she ought to be preascertaining
we ought to be preascertaining
you ought to be preascertaining
they ought to be preascertaining	I ought to have preascertained
you ought to have preascertained
she ought to have preascertained
we ought to have preascertained
you ought to have preascertained
they ought to have preascertained	I ought to have been preascertaining
you ought to have been preascertaining
she ought to have been preascertaining
we ought to have been preascertaining
you ought to have been preascertaining
they ought to have been preascertaining	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I ought not to preascertain
you ought not to preascertain
she ought not to preascertain
we ought not to preascertain
you ought not to preascertain
they ought not to preascertain 	I ought not to preascertaining
you ought not to preascertaining
she ought not to preascertaining
we ought not to preascertaining
you ought not to preascertaining
they ought not to preascertaining	I ought not to have preascertained
you ought not to have preascertained
she ought not to have preascertained
we ought not to have preascertained
you ought not to have preascertained
they ought not to have preascertained	I ought not to have been preascertaining
you ought not to have been preascertaining
she ought not to have been preascertaining
we ought not to have been preascertaining
you ought not to have been preascertaining
they ought not to have been preascertaining	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
ought to I preascertain?
ought to you preascertain?
ought to she preascertain?
ought to we preascertain?
ought to you preascertain?
ought to they preascertain? 	ought to I be preascertaining?
ought to you be preascertaining?
ought to she be preascertaining?
ought to we be preascertaining?
ought to you be preascertaining?
ought to they be preascertaining? 	ought to I have preascertained?
ought to you have preascertained?
ought to she have preascertained?
ought to we have preascertained?
ought to you have preascertained?
ought to they have preascertained? 	ought to I have been preascertaining?
ought to you have been preascertaining?
ought to she have been preascertaining?
ought to we have been preascertaining?
ought to you have been preascertaining?
ought to they have been preascertaining? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
ought I not to preascertain?
ought you not to preascertain?
ought she not to preascertain?
ought we not to preascertain?
ought you not to preascertain?
ought they not to preascertain? 	ought I not to be preascertaining?
ought you not to be preascertaining?
ought she not to be preascertaining?
ought we not to be preascertaining?
ought you not to be preascertaining?
ought they not to be preascertaining? 	ought I not to have preascertained?
ought you not to have preascertained?
ought she not to have preascertained?
ought we not to have preascertained?
ought you not to have preascertained?
ought they not to have preascertained? 	ought I not to have been preascertaining?
ought you not to have been preascertaining?
ought she not to have been preascertaining?
ought we not to have been preascertaining?
ought you not to have been preascertaining?
ought they not to have been preascertaining?