Explanation
Expresses 'now that', 'since', or 'once'.
Formation
Verb-casual + 上は, い-Adjective + 上は, な-Adjective + な上は, Noun + の上は
Detailed explanation
The ～上は grammar point is used to express that since a certain condition or situation exists, a certain action or result follows. It can be translated as 'now that', 'since', or 'once' in English. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.
Examples
Shiken ni goukaku shita ue wa, paatii wo hirakou.
Now that I've passed the exam, let's have a party.
Kono shigoto wo hikiuketa ue wa, saigo made yaritogeru tsumori da.
Now that I have taken on this job, I intend to see it through to the end.
Shinsetsu da to iwareta ue wa, tetsudatte ageyou.
Since you said I'm kind, I'll help you out.
Amai mono ga suki na ue wa, kono dezaato wo kitto ki ni iru deshou.
Now that you like sweets, you'll surely enjoy this dessert.
Practice
Grammar content sourced from hanabira.org.