ascertain - Conjugation of the English verb ascertain
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to ascertain - vérifier  
 
Indicative
Present Perfect
I ascertain
you ascertain
she ascertains
we ascertain
they ascertain
I have ascertained
you have ascertained
she has ascertained
we have ascertained
they have ascertained
Past Pluperfect
I ascertained
you ascertained
she ascertained
we ascertained
they ascertained
I had ascertained
you had ascertained
she had ascertained
we had ascertained
they had ascertained
Future Future perfect
I will ascertain
you will ascertain
she will ascertain
we will ascertain
they will ascertain
I will have ascertained
you will have ascertained
she will have ascertained
we will have ascertained
they will have ascertained
Imperative
Present    
ascertain!
let's ascertain!
 
 
Conditional
Present Perfect
I would ascertain
you would ascertain
she would ascertain
we would ascertain
they would ascertain
I would have ascertained
you would have ascertained
she would have ascertained
we would have ascertained
they would have ascertained
Conjunctive
Present Perfect
I ascertain
you ascertain
she ascertain
we ascertain
they ascertain
I have ascertained
you have ascertained
she have ascertained
we have ascertained
they have ascertained
Past   Pluperfect  
I ascertained
you ascertained
she ascertained
we ascertained
they ascertained
I had ascertained
you had ascertained
she had ascertained
we had ascertained
they had ascertained
Participle
Gerund Past
ascertaining
ascertained