I trephine you trephine she trephines we trephine you trephine they trephine
Present continuous
I am trephining you are trephining she is trephining we are trephining you are trephining they are trephining
Preterite
I trephined you trephined she trephined we trephined you trephined they trephined
Preterite continuous
I was trephining you were trephining she was trephining we were trephining you were trephining they were trephining
Present perfect
I have trephined you have trephined she has trephined we have trephined you have trephined they have trephined
Present perfect continuous
I have been trephining you have been trephining she has been trephining we have been trephining you have been trephining they have been trephining
Pluperfect
I had trephined you had trephined she had trephined we had trephined you had trephined they had trephined
Pluperfect continuous
I had been trephining you had been trephining she had been trephining we had been trephining you had been trephining they had been trephining
Future
I will trephine you will trephine she will trephine we will trephine you will trephine they will trephine
Future continuous
I will be trephining you will be trephining she will be trephining we will be trephining you will be trephining they will be trephining
Future perfect
I will have trephined you will have trephined she will have trephined we will have trephined you will have trephined they will have trephined
Future perfect continuous
I will have been trephining you will have been trephining she will have been trephining we will have been trephining you will have been trephining they will have been trephining
Conditional
Present
I would trephine you would trephine she would trephine we would trephine you would trephine they would trephine
Present continuous
I would be trephining you would be trephining she would be trephining we would be trephining you would be trephining they would be trephining
Past
I would have trephined you would have trephined she would have trephined we would have trephined you would have trephined they would have trephined
Past continuous
I would have been trephining you would have been trephining she would have been trephining we would have been trephining you would have been trephining they would have been trephining