Present
I undervalue
you undervalue
he undervalues
we undervalue
you undervalue
they undervalue

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

Past
I undervalued
you undervalued
he undervalued
we undervalued
you undervalued
they undervalued

Pluperfect
I had undervalued
you had undervalued
he had undervalued
we had undervalued
you had undervalued
they had undervalued

Future
I will undervalue
you will undervalue
he will undervalue
we will undervalue
you will undervalue
they will undervalue

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

Present
I undervalue
you undervalue
he undervalue
we undervalue
you undervalue
they undervalue

Present
I have undervalued
you have undervalued
he have undervalued
we have undervalued
you have undervalued
they have undervalued

Imperfect
I undervalued
you undervalued
he undervalued
we undervalued
you undervalued
they undervalued

Pluperfect
I had undervalued
you had undervalued
he had undervalued
we had undervalued
you had undervalued
they had undervalued

Present
I would undervalue
you would undervalue
he would undervalue
we would undervalue
you would undervalue
they would undervalue

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

you undervalue
we Let's undervalue
you undervalue

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

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

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

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

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

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

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

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