because
Essential everyday
Conjunction
Type:Subordinating
Subtype:Causal
Mood:Indicative preferred
Punctuation:A comma is usually used before protože when it starts a subordinate clause.
Examples
I will stay home because it is raining.
I am not going out because I am sick.
I study because I want to speak.
I am hurrying because it is late.
I will help you because I have time.