Indicative
Present Indefinite
I look back upon
you look back upon
he/she/it looks back upon
we look back upon
you look back upon
they look back upon
Present Continuous
I am looking back upon
you are looking back upon
he/she/it is looking back upon
we are looking back upon
you are looking back upon
they are looking back upon
Present Perfect
I have looked back upon
you have looked back upon
he/she/it has looked back upon
we have looked back upon
you have looked back upon
they have looked back upon
Present Perfect Continuous
I have been looking back upon
you have been looking back upon
he/she/it has been looking back upon
we have been looking back upon
you have been looking back upon
they have been looking back upon
Past Indefinite
I looked back upon
you looked back upon
he/she/it looked back upon
we looked back upon
you looked back upon
they looked back upon
Past Continuous
I was looking back upon
you were looking back upon
he/she/it was looking back upon
we were looking back upon
you were looking back upon
they were looking back upon
Past Perfect
I had looked back upon
you had looked back upon
he/she/it had looked back upon
we had looked back upon
you had looked back upon
they had looked back upon
Past Perfect Continuous
I had been looking back upon
you had been looking back upon
he/she/it had been looking back upon
we had been looking back upon
you had been looking back upon
they had been looking back upon
Future Indefinite
I will look back upon
you will look back upon
he/she/it will look back upon
we will look back upon
you will look back upon
they will look back upon
Future Continuous
I will be looking back upon
you will be looking back upon
he/she/it will be looking back upon
we will be looking back upon
you will be looking back upon
they will be looking back upon
Future Perfect
I will have looked back upon
you will have looked back upon
he/she/it will have looked back upon
we will have looked back upon
you will have looked back upon
they will have looked back upon
Future Perfect Continuous
I will have been looking back upon
you will have been looking back upon
he/she/it will have been looking back upon
we will have been looking back upon
you will have been looking back upon
they will have been looking back upon
Conditional
Conditional Present
I would look back upon
you would look back upon
he/she/it would look back upon
we would look back upon
you would look back upon
they would look back upon
Conditional Present Continuous
I would be looking back upon
you would be looking back upon
he/she/it would be looking back upon
we would be looking back upon
you would be looking back upon
they would be looking back upon
Conditional Perfect
I would have looked back upon
you would have looked back upon
he/she/it would have looked back upon
we would have looked back upon
you would have looked back upon
they would have looked back upon
Conditional Perfect Continuous
I would have been looking back upon
you would have been looking back upon
he/she/it would have been looking back upon
we would have been looking back upon
you would have been looking back upon
they would have been looking back upon