I preascertain you preascertain she preascertains we preascertain you preascertain they preascertain
Present continuous
I am preascertaining you are preascertaining she is preascertaining we are preascertaining you are preascertaining they are preascertaining
Preterite
I preascertained you preascertained she preascertained we preascertained you preascertained they preascertained
Preterite continuous
I was preascertaining you were preascertaining she was preascertaining we were preascertaining you were preascertaining they were preascertaining
Present perfect
I have preascertained you have preascertained she has preascertained we have preascertained you have preascertained they have preascertained
Present perfect continuous
I have been preascertaining you have been preascertaining she has been preascertaining we have been preascertaining you have been preascertaining they have been preascertaining
Pluperfect
I had preascertained you had preascertained she had preascertained we had preascertained you had preascertained they had preascertained
Pluperfect continuous
I had been preascertaining you had been preascertaining she had been preascertaining we had been preascertaining you had been preascertaining they had been preascertaining
Future
I will preascertain you will preascertain she will preascertain we will preascertain you will preascertain they will preascertain
Future continuous
I will be preascertaining you will be preascertaining she will be preascertaining we will be preascertaining you will be preascertaining they will be preascertaining
Future perfect
I will have preascertained you will have preascertained she will have preascertained we will have preascertained you will have preascertained they will have preascertained
Future perfect continuous
I will have been preascertaining you will have been preascertaining she will have been preascertaining we will have been preascertaining you will have been preascertaining they will have been preascertaining
Conditional
Present
I would preascertain you would preascertain she would preascertain we would preascertain you would preascertain they would preascertain
Present continuous
I would be preascertaining you would be preascertaining she would be preascertaining we would be preascertaining you would be preascertaining they would be preascertaining
Past
I would have preascertained you would have preascertained she would have preascertained we would have preascertained you would have preascertained they would have preascertained
Past continuous
I would have been preascertaining you would have been preascertaining she would have been preascertaining we would have been preascertaining you would have been preascertaining they would have been preascertaining