Explanation
Used to describe the purpose or reason for an action; 'for the sake of', 'in order to', 'because of'.
Formation
1) Verb (dictionary form) + ために (purpose) 2) い-Adjective + ために (reason) 3) な-Adjective + な + ために (reason) 4) Noun + の + ために (reason)
Detailed explanation
The ために (tame ni) grammar point is used to express either the purpose of doing something (in which case it translates to 'for the sake of' or 'in order to') or the cause/reason for a situation (in which case it translates to 'because of'). Typically, we use the dictionary form of the verb (e.g., 合格する) for the 'in order to' meaning. For an adjective or noun, attach ために appropriately (い-Adjective + ために, な-Adjective + な + ために, Noun + の + ために).
Examples
Shiken ni goukaku suru tame ni, mainichi benkyou shiteimasu.
I study every day in order to pass the exam.
Kenkou no tame ni, mainichi undou shinakereba narimasen.
For the sake of health, I must exercise daily.
Shigoto ga isogashii tame ni, tomodachi to au jikan ga arimasen.
Because my work is busy, I don't have time to meet friends.
Ame ga futta tame ni, shiai ga chuushi saremashita.
The game was canceled because of the rain.
Practice
Grammar content sourced from hanabira.org.