The conjunction "because" is used at the beginning of a clause, before a subject and verb.The two-word preposition "because-of" is used before a noun or a pronoun. |
Please see comparison below: 1. A - We were wet because it rained. (You don't say "..because of it rained.") B - We were wet because of the rain. (You don't say "..because the rain.") |
2. A - I'm sad because I missed you. B – I'm sad because of you. |
Because and it's clause by position can go after or before the main clause. |
Please see examples below: 1. I finished late because I worked slowly. 2. Because I worked slowly, I finished late. |
Because-clauses can sometime stand alone, especially as answers or after hesitations. |
Please see examples below: 1. Why are you sad? – Because Kai and I had a fight. 2. I don't think I'll go to school… Because I am feeling sick. |
A quite common structure in informal speech – "just because… (it) doesn't mean…" |
Please see examples below: 1) Just because you're senior than me (it) doesn't mean you can demand anything you want. 2) Just because I'm your sister (it) doesn't mean you can keep taking my things. |