I countersign you countersign he countersigns we countersign you countersign they countersign
Present continuous
I am countersigning you are countersigning he is countersigning we are countersigning you are countersigning they are countersigning
Preterite
I countersigned you countersigned he countersigned we countersigned you countersigned they countersigned
Preterite continuous
I was countersigning you were countersigning he was countersigning we were countersigning you were countersigning they were countersigning
Present perfect
I have countersigned you have countersigned he has countersigned we have countersigned you have countersigned they have countersigned
Present perfect continuous
I have been countersigning you have been countersigning he has been countersigning we have been countersigning you have been countersigning they have been countersigning
Pluperfect
I had countersigned you had countersigned he had countersigned we had countersigned you had countersigned they had countersigned
Pluperfect continuous
I had been countersigning you had been countersigning he had been countersigning we had been countersigning you had been countersigning they had been countersigning
Future
I will countersign you will countersign he will countersign we will countersign you will countersign they will countersign
Future continuous
I will be countersigning you will be countersigning he will be countersigning we will be countersigning you will be countersigning they will be countersigning
Future perfect
I will have countersigned you will have countersigned he will have countersigned we will have countersigned you will have countersigned they will have countersigned
Future perfect continuous
I will have been countersigning you will have been countersigning he will have been countersigning we will have been countersigning you will have been countersigning they will have been countersigning
Conditional
Present
I would countersign you would countersign he would countersign we would countersign you would countersign they would countersign
Present continuous
I would be countersigning you would be countersigning he would be countersigning we would be countersigning you would be countersigning they would be countersigning
Past
I would have countersigned you would have countersigned he would have countersigned we would have countersigned you would have countersigned they would have countersigned
Past continuous
I would have been countersigning you would have been countersigning he would have been countersigning we would have been countersigning you would have been countersigning they would have been countersigning