Explanation
To go (somewhere) in order to do an action.
Formation
Verb (ます-stem) + に + 行きます
Detailed explanation
The grammar point Verb に 行きます is used when expressing that someone is going to a certain place with the purpose of doing a specific action. Form it by taking the verb's ます-stem (for suru-verbs, remove する and add し) and then adding に 行きます.
Examples
公園に遊びに行きます。
Kouen ni asobi ni ikimasu.
I will go to the park to play.
図書館に勉強しに行きます。
Toshokan ni benkyou shi ni ikimasu.
I will go to the library to study.
スーパーに買い物に行きます。
Suupaa ni kaimono ni ikimasu.
I will go to the supermarket to do some shopping.
映画館に映画を見に行きます。
Eigakan ni eiga wo mi ni ikimasu.
I will go to the movie theater to watch a movie.
Practice
Grammar content sourced from hanabira.org.