I want to study eEnglish because I want to go on trip to travel all over the world.
<em>But you could also write:</em>
I want to study English so I can travel all over the world
I want to study english.
I want to study english because I want to travel all over the world.
I want to study english so I can travel all over the world.
I want to study english.
I want to study english so I can travel all over the world.