I precertify you precertify he precertifies we precertify you precertify they precertify
Present continuous
I am precertifying you are precertifying he is precertifying we are precertifying you are precertifying they are precertifying
Preterite
I precertified you precertified he precertified we precertified you precertified they precertified
Preterite continuous
I was precertifying you were precertifying he was precertifying we were precertifying you were precertifying they were precertifying
Present perfect
I have precertified you have precertified he has precertified we have precertified you have precertified they have precertified
Present perfect continuous
I have been precertifying you have been precertifying he has been precertifying we have been precertifying you have been precertifying they have been precertifying
Pluperfect
I had precertified you had precertified he had precertified we had precertified you had precertified they had precertified
Pluperfect continuous
I had been precertifying you had been precertifying he had been precertifying we had been precertifying you had been precertifying they had been precertifying
Future
I will precertify you will precertify he will precertify we will precertify you will precertify they will precertify
Future continuous
I will be precertifying you will be precertifying he will be precertifying we will be precertifying you will be precertifying they will be precertifying
Future perfect
I will have precertified you will have precertified he will have precertified we will have precertified you will have precertified they will have precertified
Future perfect continuous
I will have been precertifying you will have been precertifying he will have been precertifying we will have been precertifying you will have been precertifying they will have been precertifying
Conditional
Present
I would precertify you would precertify he would precertify we would precertify you would precertify they would precertify
Present continuous
I would be precertifying you would be precertifying he would be precertifying we would be precertifying you would be precertifying they would be precertifying
Past
I would have precertified you would have precertified he would have precertified we would have precertified you would have precertified they would have precertified
Past continuous
I would have been precertifying you would have been precertifying he would have been precertifying we would have been precertifying you would have been precertifying they would have been precertifying