～てみる
try doing
～てみる is made from the て-form of a verb plus みる, which comes from 見る (“to see”) but is usually written in hiragana here. The image is exactly that: you do the action to see what it is like.
It maps to English “try doing”. Note the difference from ～ようとする: ～ようとする describes attempting an action (which may not happen), while ～てみる means you actually do it once and see the result.
1. Trying something out
Use ～てみる when you do something for the first time, or as an experiment, to find out how it turns out.
この服を着てみる。
“I'll try these clothes on.”
- この = this
- 服（ふく）= clothes
- を = object marker
- 着てみる（きてみる）= will try on (and see)
2. Suggesting that someone try
In the form ～てみてください, it becomes a soft recommendation: “give it a try”.
このケーキ、おいしいですから、食べてみてください。
“This cake is delicious, so please try it.”
- この = this
- ケーキ = cake
- おいしい = delicious
- から = because / so
- 食べてみてください（たべてみてください）= please try eating
How to form it
Verb て-form + みる
- 着る（きる）= to wear → 着てみる（きてみる）= try on
- 食べる（たべる）= to eat → 食べてみる（たべてみる）= try eating
- 行く（いく）= to go → 行ってみる（いってみる）= try going
Key idea
～てみる = do it once and see. You are not sure of the result, so you do the action as a test and find out what happens.
Other N3 grammar
Updated .