Indicative
Present Indefinite
I turn sour
you turn sour
he/she/it turns sour
we turn sour
you turn sour
they turn sour
Present Continuous
I am turning sour
you are turning sour
he/she/it is turning sour
we are turning sour
you are turning sour
they are turning sour
Present Perfect
I have turned sour
you have turned sour
he/she/it has turned sour
we have turned sour
you have turned sour
they have turned sour
Present Perfect Continuous
I have been turning sour
you have been turning sour
he/she/it has been turning sour
we have been turning sour
you have been turning sour
they have been turning sour
Past Indefinite
I turned sour
you turned sour
he/she/it turned sour
we turned sour
you turned sour
they turned sour
Past Continuous
I was turning sour
you were turning sour
he/she/it was turning sour
we were turning sour
you were turning sour
they were turning sour
Past Perfect
I had turned sour
you had turned sour
he/she/it had turned sour
we had turned sour
you had turned sour
they had turned sour
Past Perfect Continuous
I had been turning sour
you had been turning sour
he/she/it had been turning sour
we had been turning sour
you had been turning sour
they had been turning sour
Future Indefinite
I will turn sour
you will turn sour
he/she/it will turn sour
we will turn sour
you will turn sour
they will turn sour
Future Continuous
I will be turning sour
you will be turning sour
he/she/it will be turning sour
we will be turning sour
you will be turning sour
they will be turning sour
Future Perfect
I will have turned sour
you will have turned sour
he/she/it will have turned sour
we will have turned sour
you will have turned sour
they will have turned sour
Future Perfect Continuous
I will have been turning sour
you will have been turning sour
he/she/it will have been turning sour
we will have been turning sour
you will have been turning sour
they will have been turning sour
Conditional
Conditional Present
I would turn sour
you would turn sour
he/she/it would turn sour
we would turn sour
you would turn sour
they would turn sour
Conditional Present Continuous
I would be turning sour
you would be turning sour
he/she/it would be turning sour
we would be turning sour
you would be turning sour
they would be turning sour
Conditional Perfect
I would have turned sour
you would have turned sour
he/she/it would have turned sour
we would have turned sour
you would have turned sour
they would have turned sour
Conditional Perfect Continuous
I would have been turning sour
you would have been turning sour
he/she/it would have been turning sour
we would have been turning sour
you would have been turning sour
they would have been turning sour