Tener as Obligation

Use the conjugated form of Tener + que + the infinitive form of the verb to form the obligation form "must".    I must do ______  (something...)  I have to clean the boat this afternoon.
Tengo
Tienes
Tiene
Tenemos
Tienen
Que Infinitive form of verb the rest of the sentance.
Tengo que estudiar matematicas. I must study Math.
Yo tengo que terminar reparar mi motor. I must fix my engine.
Tienes que vener con me. You must come with me.
Tenemos que hacer nuestra tarea. We must do our homework.
Qu tienes que hacer manana? What do you have to do tomorrow?