present

I calculate

You calculate

He calculates

She calculates

It calculates

We calculate

They calculate

past

I calculated

You calculated

He calculated

She calculated

It calculated

We calculated

They calculated

future

I will calculate

You will calculate

He will calculate

She will calculate

It will calculate

We will calculate

They will calculate

conditional

I would calculate

You would calculate

He would calculate

She would calculate

It would calculate

We would calculate

They would calculate