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

Indicatif 	
Présent 	Présent continu 	Prétérit 	Prétérit continu 	
 do I not ascertain?
do you not ascertain?
doesshe not ascertain?
do we not ascertain?
do you not ascertain?
do they not ascertain? 	amI not ascertaining?
areyou not ascertaining?
isshe not ascertaining?
arewe not ascertaining?
areyou not ascertaining?
arethey not ascertaining? 	did I not ascertain?
did you not ascertain?
did she not ascertain?
did we not ascertain?
did you not ascertain?
did they not ascertain? 	wasI not ascertaining?
wereyou not ascertaining?
wasshe not ascertaining?
werewe not ascertaining?
wereyou not ascertaining?
werethey not ascertaining? 	
Present perfect 	Present perfect continu 	Pluperfect 	Pluperfect continu 	
 have I not ascertained?
have you not ascertained?
hasshe not ascertained?
have we not ascertained?
have you not ascertained?
have they not ascertained? 	 have I not been ascertaining?
have you not been ascertaining?
hasshe not been ascertaining?
have we not been ascertaining?
have you not been ascertaining?
have they not been ascertaining? 	had I not ascertained?
had you not ascertained?
had she not ascertained?
had we not ascertained?
had you not ascertained?
had they not ascertained? 	had I not been ascertaining?
had you not been ascertaining?
had she not been ascertaining?
had we not been ascertaining?
had you not been ascertaining?
had they not been ascertaining? 	
Futur 	Futur continu 	Futur antérieur 	Futur antérieur continu 	
will I not ascertain?
will you not ascertain?
will she not ascertain?
will we not ascertain?
will you not ascertain?
will they not ascertain? 	will I not be ascertaining?
will you not be ascertaining?
will she not be ascertaining?
will we not be ascertaining?
will you not be ascertaining?
will they not be ascertaining? 	will I not have ascertained?
will you not have ascertained?
will she not have ascertained?
will we not have ascertained?
will you not have ascertained?
will they not have ascertained? 	will I not have been ascertaining?
will you not have been ascertaining?
will she not have been ascertaining?
will we not have been ascertaining?
will you not have been ascertaining?
will they not have been ascertaining? 	

Conditionnel 	
Présent 	Présent continu 	Passé 	Passé continu 	
would I not ascertain?
would you not ascertain?
would she not ascertain?
would we not ascertain?
would you not ascertain?
would they not ascertain? 	would I not be ascertaining?
would you not be ascertaining?
would she not be ascertaining?
would we not be ascertaining?
would you not be ascertaining?
would they not be ascertaining? 	would I not have ascertained?
would you not have ascertained?
would she not have ascertained?
would we not have ascertained?
would you not have ascertained?
would they not have ascertained? 	would I not have been ascertaining?
would you not have been ascertaining?
would she not have been ascertaining?
would we not have been ascertaining?
would you not have been ascertaining?
would they not have been ascertaining? 	

Infinitif 	
Impératif 	
Infinitif 	 	Impératif 	 	
to ascertain 	 	-
-
- 	 	

Participe 	
Présent 	Passé 	 	 	
ascertaining	ascertained