I think that these sentences are both correct:

> 旅行の日程 **が決められました** 。

and

> 旅行の日程 **が決まりました** 。

But if I use

> 旅行の日程 **を決まりました** 。

is this correct?
CC BY-SA 3.0
2014-12-11T12:18:49.107
20833
2014-12-11T13:49:49.037
2014-12-11T12:24:40.680
7920
question
particles transitivity
Transitive, Intransitive Verbs and Particles
旅行の日程が決まりました is correct and natural.

旅行の日程が決められました is not grammatically mistaken, but unnatural (hardly heard).

旅行の日程を決まりました is grammatically wrong, sounds weird.
CC BY-SA 3.0
2014-12-11T13:33:43.200
20834
2014-12-11T13:49:49.037
2014-12-11T13:49:49.037
7667
20833
answer