The Infinitive to

the first / Gagarin was the first to fly in a spaceship.
the last  / Peter was the last to watch the film.
the next / He is the next to get his passport.

sıfatlar ile    I'm happy to be here.
                 It's better not to smoke.

Bazı fiiller ile
(agree, choose, forget, hope, learn, promise, regret, want, …)        I learn to drive a car.

Soru kelimeleri ile            I don't know what to say.
                                    Can you tell me how to get to the bus stop?

want/would like               I want you to help me.

fiil+ nesne+ to-infinitive     I helped my dad to clean the car.

NOT!!!
I want to help you.        I want you to help me.