kılmak is the verb which means "to pray"

Present Simple Form of "kılmak" is:

Kılarım

Kılarsın

Kılar

Kılarız

Kılarsınız

Kılarlar

But "kılınır is the passive form which means "to be prayed"

Two simple sentence to understand better:

Her gün namaz kılarım. (I pray everyday.)

Camide hergün beş vakit namaz kılınır. (It is prayed everyday five times in the mosque.)

What you say is what mean?

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http://www.youtube.com/playlist?list=PLBv6B6E0IuHhGT9KWpGTDWq-GagNYXkP1

Thanks for both of you for the explanation...it;s still hard to understand for me... do you know where i can learn for the basic of turkce?? :(

Yes for prayer. you are welcome. In fact it is not so difficult, because you can make all of the verbs infinitive or simple present tense in the same way. Here are a few samples for you:

Gel----> nominative

gel-mek----> infinitive

gelinir----> simp. Present tense

Kal---->nominative

kal-mak----> infinitive

kalınır---> simp. Present tense.    etc.

Briefly to make a verb infinitive you should add "-mak,-mek" to the nominative word.

You also try to do a few, if it is wrong, I will correct them for you.