Indicative
Present Indefinite
I trephine
you trephine
he/she/it trephines
we trephine
you trephine
they trephine
Present Continuous
I am trephining
you are trephining
he/she/it is trephining
we are trephining
you are trephining
they are trephining
Present Perfect
I have trephined
you have trephined
he/she/it has trephined
we have trephined
you have trephined
they have trephined
Present Perfect Continuous
I have been trephining
you have been trephining
he/she/it has been trephining
we have been trephining
you have been trephining
they have been trephining
Past Indefinite
I trephined
you trephined
he/she/it trephined
we trephined
you trephined
they trephined
Past Continuous
I was trephining
you were trephining
he/she/it was trephining
we were trephining
you were trephining
they were trephining
Past Perfect
I had trephined
you had trephined
he/she/it had trephined
we had trephined
you had trephined
they had trephined
Past Perfect Continuous
I had been trephining
you had been trephining
he/she/it had been trephining
we had been trephining
you had been trephining
they had been trephining
Future Indefinite
I will trephine
you will trephine
he/she/it will trephine
we will trephine
you will trephine
they will trephine
Future Continuous
I will be trephining
you will be trephining
he/she/it 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
he/she/it 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
he/she/it will have been trephining
we will have been trephining
you will have been trephining
they will have been trephining
Conditional
Conditional Present
I would trephine
you would trephine
he/she/it would trephine
we would trephine
you would trephine
they would trephine
Conditional Present Continuous
I would be trephining
you would be trephining
he/she/it would be trephining
we would be trephining
you would be trephining
they would be trephining
Conditional Perfect
I would have trephined
you would have trephined
he/she/it would have trephined
we would have trephined
you would have trephined
they would have trephined
Conditional Perfect Continuous
I would have been trephining
you would have been trephining
he/she/it would have been trephining
we would have been trephining
you would have been trephining
they would have been trephining