I investigate you investigate he investigates we investigate you investigate they investigate
Present continuous
I am investigating you are investigating he is investigating we are investigating you are investigating they are investigating
Preterite
I investigated you investigated he investigated we investigated you investigated they investigated
Preterite continuous
I was investigating you were investigating he was investigating we were investigating you were investigating they were investigating
Present perfect
I have investigated you have investigated he has investigated we have investigated you have investigated they have investigated
Present perfect continuous
I have been investigating you have been investigating he has been investigating we have been investigating you have been investigating they have been investigating
Pluperfect
I had investigated you had investigated he had investigated we had investigated you had investigated they had investigated
Pluperfect continuous
I had been investigating you had been investigating he had been investigating we had been investigating you had been investigating they had been investigating
Future
I will investigate you will investigate he will investigate we will investigate you will investigate they will investigate
Future continuous
I will be investigating you will be investigating he will be investigating we will be investigating you will be investigating they will be investigating
Future perfect
I will have investigated you will have investigated he will have investigated we will have investigated you will have investigated they will have investigated
Future perfect continuous
I will have been investigating you will have been investigating he will have been investigating we will have been investigating you will have been investigating they will have been investigating
Conditional
Present
I would investigate you would investigate he would investigate we would investigate you would investigate they would investigate
Present continuous
I would be investigating you would be investigating he would be investigating we would be investigating you would be investigating they would be investigating
Past
I would have investigated you would have investigated he would have investigated we would have investigated you would have investigated they would have investigated
Past continuous
I would have been investigating you would have been investigating he would have been investigating we would have been investigating you would have been investigating they would have been investigating