[v1 stem] + てみる [v5 て-form] + みる [する → して] + みる [来る → きて] + みる
The ~てみる form is used to express trying something out or doing something to see what happens. It combines the て-form of a verb with みる (to see), literally meaning "do and see." The nuance is that you perform an action to experience or test the result.
This is the most common usage – doing something to find out what it's like.
It can also express doing something experimentally to see if it works or what the result will be.
Since みる is a る-verb, ~てみる conjugates like any other る-verb:
Be careful not to confuse ~てみる with 〜~ようとする. While ~てみる means trying something to see what it's like, ~ようとする means attempting to do something (with effort, possibly failing). For example,
vs.