-Adverb Clauses-
Usually in a complex sentence if the dependent clause is at beginning it is followed by a comma, but there is a exception; for example, for dependent clauses with adverb of contrast, it kind of clause always you have to use comma, if the clause is at the beginning or at the end.
Example:
The won the game, thoug they didn't really deserve the victory.
Thoug they didn't really deserve the victory, the won the game.
Although their team is talented, they just didn't win.
They just didn't win, although their team is talented.
Ivan Arturo, Apaza Barrantes .... Advance-06
