Indicative
Present Indefinite
I observe
you observe
he/she/it observes
we observe
you observe
they observe
Present Continuous
I am observing
you are observing
he/she/it is observing
we are observing
you are observing
they are observing
Present Perfect
I have observed
you have observed
he/she/it has observed
we have observed
you have observed
they have observed
Present Perfect Continuous
I have been observing
you have been observing
he/she/it has been observing
we have been observing
you have been observing
they have been observing
Past Indefinite
I observed
you observed
he/she/it observed
we observed
you observed
they observed
Past Continuous
I was observing
you were observing
he/she/it was observing
we were observing
you were observing
they were observing
Past Perfect
I had observed
you had observed
he/she/it had observed
we had observed
you had observed
they had observed
Past Perfect Continuous
I had been observing
you had been observing
he/she/it had been observing
we had been observing
you had been observing
they had been observing
Future Indefinite
I will observe
you will observe
he/she/it will observe
we will observe
you will observe
they will observe
Future Continuous
I will be observing
you will be observing
he/she/it will be observing
we will be observing
you will be observing
they will be observing
Future Perfect
I will have observed
you will have observed
he/she/it will have observed
we will have observed
you will have observed
they will have observed
Future Perfect Continuous
I will have been observing
you will have been observing
he/she/it will have been observing
we will have been observing
you will have been observing
they will have been observing
Conditional
Conditional Present
I would observe
you would observe
he/she/it would observe
we would observe
you would observe
they would observe
Conditional Present Continuous
I would be observing
you would be observing
he/she/it would be observing
we would be observing
you would be observing
they would be observing
Conditional Perfect
I would have observed
you would have observed
he/she/it would have observed
we would have observed
you would have observed
they would have observed
Conditional Perfect Continuous
I would have been observing
you would have been observing
he/she/it would have been observing
we would have been observing
you would have been observing
they would have been observing