Present
I extemporize
you extemporize
he extemporizes
we extemporize
you extemporize
they extemporize

Perfect
I have extemporized
you have extemporized
he has extemporized
we have extemporized
you have extemporized
they have extemporized

Past
I extemporized
you extemporized
he extemporized
we extemporized
you extemporized
they extemporized

Pluperfect
I had extemporized
you had extemporized
he had extemporized
we had extemporized
you had extemporized
they had extemporized

Future
I will extemporize
you will extemporize
he will extemporize
we will extemporize
you will extemporize
they will extemporize

Future perfect
I will have extemporized
you will have extemporized
he will have extemporized
we will have extemporized
you will have extemporized
they will have extemporized

Present
I extemporize
you extemporize
he extemporize
we extemporize
you extemporize
they extemporize

Present
I have extemporized
you have extemporized
he have extemporized
we have extemporized
you have extemporized
they have extemporized

Imperfect
I extemporized
you extemporized
he extemporized
we extemporized
you extemporized
they extemporized

Pluperfect
I had extemporized
you had extemporized
he had extemporized
we had extemporized
you had extemporized
they had extemporized

Present
I would extemporize
you would extemporize
he would extemporize
we would extemporize
you would extemporize
they would extemporize

Perfect
I would have extemporized
you would have extemporized
he would have extemporized
we would have extemporized
you would have extemporized
they would have extemporized

you extemporize
we Let's extemporize
you extemporize

Present
I am extemporizing
you are extemporizing
he is extemporizing
we are extemporizing
you are extemporizing
they are extemporizing

Perfect
I have been extemporizing
you have been extemporizing
he has been extemporizing
we have been extemporizing
you have been extemporizing
they have been extemporizing

Past
I was extemporizing
you were extemporizing
he was extemporizing
we were extemporizing
you were extemporizing
they were extemporizing

Pluperfect
I had been extemporizing
you had been extemporizing
he had been extemporizing
we had been extemporizing
you had been extemporizing
they had been extemporizing

Future
I will be extemporizing
you will be extemporizing
he will be extemporizing
we will be extemporizing
you will be extemporizing
they will be extemporizing

Future perfect
I will have been extemporizing
you will have been extemporizing
he will have been extemporizing
we will have been extemporizing
you will have been extemporizing
they will have been extemporizing

Present
I would be extemporizing
you would be extemporizing
he would be extemporizing
we would be extemporizing
you would be extemporizing
they would be extemporizing

Perfect
I would have been extemporizing
you would have been extemporizing
he would have been extemporizing
we would have been extemporizing
you would have been extemporizing
they would have been extemporizing