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

Indicatif 	
Présent 	Présent continu 	Prétérit 	Prétérit continu 	
 don't I ascertain?
don't you ascertain?
doesn't he ascertain?
don't we ascertain?
don't you ascertain?
don't they ascertain? 	amI not ascertaining?
aren't you ascertaining?
isn't he ascertaining?
aren't we ascertaining?
aren't you ascertaining?
aren't they ascertaining? 	didn't I ascertain?
didn't you ascertain?
didn't he ascertain?
didn't we ascertain?
didn't you ascertain?
didn't they ascertain? 	wasn't I ascertaining?
weren't you ascertaining?
wasn't he ascertaining?
weren't we ascertaining?
weren't you ascertaining?
weren't they ascertaining? 	
Present perfect 	Present perfect continu 	Pluperfect 	Pluperfect continu 	
haven't I ascertained?
haven't you ascertained?
hasn't he ascertained?
haven't we ascertained?
haven't you ascertained?
haven't they ascertained? 	haven't I been ascertaining?
haven't you been ascertaining?
hasn't he been ascertaining?
haven't we been ascertaining?
haven't you been ascertaining?
haven't they been ascertaining? 	hadn't I ascertained?
hadn't you ascertained?
hadn't he ascertained?
hadn't we ascertained?
hadn't you ascertained?
hadn't they ascertained? 	hadn't I been ascertaining?
hadn't you been ascertaining?
hadn't he been ascertaining?
hadn't we been ascertaining?
hadn't you been ascertaining?
hadn't they been ascertaining? 	
Futur 	Futur continu 	Futur antérieur 	Futur antérieur continu 	
won't I ascertain?
won't you ascertain?
won't he ascertain?
won't we ascertain?
won't you ascertain?
won't they ascertain? 	won't I be ascertaining?
won't you be ascertaining?
won't he be ascertaining?
won't we be ascertaining?
won't you be ascertaining?
won't they be ascertaining? 	won't I have ascertained?
won't you have ascertained?
won't he have ascertained?
won't we have ascertained?
won't you have ascertained?
won't they have ascertained? 	won't I have been ascertaining?
won't you have been ascertaining?
won't he have been ascertaining?
won't we have been ascertaining?
won't you have been ascertaining?
won't they have been ascertaining? 	

Conditionnel 	
Présent 	Présent continu 	Passé 	Passé continu 	
wouldn't I ascertain?
wouldn't you ascertain?
wouldn't he ascertain?
wouldn't we ascertain?
wouldn't you ascertain?
wouldn't they ascertain? 	wouldn't I be ascertaining?
wouldn't you be ascertaining?
wouldn't he be ascertaining?
wouldn't we be ascertaining?
wouldn't you be ascertaining?
wouldn't they be ascertaining? 	wouldn't I have ascertained?
wouldn't you have ascertained?
wouldn't he have ascertained?
wouldn't we have ascertained?
wouldn't you have ascertained?
wouldn't they have ascertained? 	wouldn't I have been ascertaining?
wouldn't you have been ascertaining?
wouldn't he have been ascertaining?
wouldn't we have been ascertaining?
wouldn't you have been ascertaining?
wouldn't they have been ascertaining? 	

Infinitif 	
Impératif 	
Infinitif 	 	Impératif 	 	
to ascertain 	 	-
-
- 	 	

Participe 	
Présent 	Passé 	 	 	
ascertaining	ascertained