present
I crack
You crack
He cracks
She cracks
It cracks
We crack
They crack
past
I cracked
You cracked
He cracked
She cracked
It cracked
We cracked
They cracked
future
I will crack
You will crack
He will crack
She will crack
It will crack
We will crack
They will crack
conditional
I would crack
You would crack
He would crack
She would crack
It would crack
We would crack
They would crack