[pacerier]

thanks too for the explanation. =P


anyway i was wondering when we use から to join 2 sentences, must the sentence on the left of から be in plain form.

like is this allowed: 試験がありますからどこも行きません, or do i have to use this 試験があるからどこも行きません.
(btw is the kanji for ある, 在る or 有る?)

also when we use のに, must the sentence on the left be in plain form



regarding the particle あいだ, is it sometimes interchangeable with the ながら conjugation, will this 2 sentences be ok:
バスを待っているあいだ新聞を読みます
バスを待ちながら新聞を読みます
(can あいだ be written as 間 when its used in the sentence above?)