present
I cleave
You cleave
He cleaves
She cleaves
It cleaves
We cleave
They cleave
past
I cleft
You cleft
He cleft
She cleft
It cleft
We cleft
They cleft
future
I will cleave
You will cleave
He will cleave
She will cleave
It will cleave
We will cleave
They will cleave
conditional
I would cleave
You would cleave
He would cleave
She would cleave
It would cleave
We would cleave
They would cleave