JLPT N2
上は（うえは）
now that; since; as long as ~
Structure / Usage
Verb (た form / dictionary form) + 上は
Example Sentences
決めた上は、最後まで頑張る。
Now that I've decided, I'll do my best until the end.
引き受けた上は、責任を持つ。
Now that I've taken it on, I'll take responsibility.