to ascertain
Verbe régulier : ascertain - ascertained- ascertained
Traduction française : établir - constater 

Indicatif 	
Présent 	Présent continu 	Prétérit 	Prétérit continu 	
 do I ascertain?
do you ascertain?
doesshe ascertain?
do we ascertain?
do you ascertain?
do they ascertain? 	amI ascertaining?
areyou ascertaining?
isshe ascertaining?
arewe ascertaining?
areyou ascertaining?
arethey ascertaining? 	did I ascertain?
did you ascertain?
did she ascertain?
did we ascertain?
did you ascertain?
did they ascertain? 	wasI ascertaining?
wereyou ascertaining?
wasshe ascertaining?
werewe ascertaining?
wereyou ascertaining?
werethey ascertaining? 	
Present perfect 	Present perfect continu 	Pluperfect 	Pluperfect continu 	
 have I ascertained?
have you ascertained?
hasshe ascertained?
have we ascertained?
have you ascertained?
have they ascertained? 	 have I been ascertaining?
have you been ascertaining?
hasshe been ascertaining?
have we been ascertaining?
have you been ascertaining?
have they been ascertaining? 	had I ascertained?
had you ascertained?
had she ascertained?
had we ascertained?
had you ascertained?
had they ascertained? 	had I been ascertaining?
had you been ascertaining?
had she been ascertaining?
had we been ascertaining?
had you been ascertaining?
had they been ascertaining? 	
Futur 	Futur continu 	Futur antérieur 	Futur antérieur continu 	
 will I ascertain?
 will you ascertain?
 will she ascertain?
 will we ascertain?
 will you ascertain?
 will they ascertain? 	 will I be ascertaining?
 will you be ascertaining?
 will she be ascertaining?
 will we be ascertaining?
 will you be ascertaining?
 will they be ascertaining? 	 will I have ascertained?
 will you have ascertained?
 will she have ascertained?
 will we have ascertained?
 will you have ascertained?
 will they have ascertained? 	 will I have been ascertaining?
 will you have been ascertaining?
 will she have been ascertaining?
 will we have been ascertaining?
 will you have been ascertaining?
 will they have been ascertaining? 	

Conditionnel 	
Présent 	Présent continu 	Passé 	Passé continu 	
 would I ascertain?
 would you ascertain?
 would she ascertain?
 would we ascertain?
 would you ascertain?
 would they ascertain? 	 would I be ascertaining?
 would you be ascertaining?
 would she be ascertaining?
 would we be ascertaining?
 would you be ascertaining?
 would they be ascertaining? 	 would I have ascertained?
 would you have ascertained?
 would she have ascertained?
 would we have ascertained?
 would you have ascertained?
 would they have ascertained? 	 would I have been ascertaining?
 would you have been ascertaining?
 would she have been ascertaining?
 would we have been ascertaining?
 would you have been ascertaining?
 would they have been ascertaining? 	

Infinitif 	
Impératif 	
Infinitif 	 	Impératif 	 	
to ascertain 	 	-
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- 	 	

Participe 	
Présent 	Passé 	 	 	
ascertaining	ascertained