關於「If it is convenient for you」標籤，搜尋引擎有相關的訊息討論：

convenient for / to / with you | WordReference ForumsI did read the sentences at #7. I still don't understand: Gl says (#19) "Sorry, not convenient." makes sense but why "Sorry I'm ...Convenience Definition & Meaning - Merriam-Webster[=at a time that is convenient for you;