I speculate you speculate he speculates we speculate you speculate they speculate
Present continuous
I am speculating you are speculating he is speculating we are speculating you are speculating they are speculating
Preterite
I speculated you speculated he speculated we speculated you speculated they speculated
Preterite continuous
I was speculating you were speculating he was speculating we were speculating you were speculating they were speculating
Present perfect
I have speculated you have speculated he has speculated we have speculated you have speculated they have speculated
Present perfect continuous
I have been speculating you have been speculating he has been speculating we have been speculating you have been speculating they have been speculating
Pluperfect
I had speculated you had speculated he had speculated we had speculated you had speculated they had speculated
Pluperfect continuous
I had been speculating you had been speculating he had been speculating we had been speculating you had been speculating they had been speculating
Future
I will speculate you will speculate he will speculate we will speculate you will speculate they will speculate
Future continuous
I will be speculating you will be speculating he will be speculating we will be speculating you will be speculating they will be speculating
Future perfect
I will have speculated you will have speculated he will have speculated we will have speculated you will have speculated they will have speculated
Future perfect continuous
I will have been speculating you will have been speculating he will have been speculating we will have been speculating you will have been speculating they will have been speculating
Conditional
Present
I would speculate you would speculate he would speculate we would speculate you would speculate they would speculate
Present continuous
I would be speculating you would be speculating he would be speculating we would be speculating you would be speculating they would be speculating
Past
I would have speculated you would have speculated he would have speculated we would have speculated you would have speculated they would have speculated
Past continuous
I would have been speculating you would have been speculating he would have been speculating we would have been speculating you would have been speculating they would have been speculating