How do I use this with verbs with and without nouns, generally I can't find the grammar
I tried googling and search on YouTube but I can't find anything in deep detail
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there's quite a lot of usage of it with verbs. hope these examples help you understand it better.
Learn more: https://www.chazidian.com/r_zi_zd6b21/
Hope this can help you.
去次一号/廁所 - go to the bathroom. 去(go) is the verb, 次 acts as a quantifier that means "a trip", the combined word "去次" means "a trip to". 一号/廁所(bathroom) is the noun.
俗語道"去芜存菁" - 去除雜亂，保留菁華. Similarily, we can say "去次存精" - 去除次品，保留精華. (Eliminate the inferior items, and only keep the best item). Note that 去 and 存 are verbs, and 次 and 精 are adjectives.