Questions & Answers about tā kěnéng zài wàimiàn gōngzuò, suǒyǐ méi shíjiān.
What is 在 doing in 在外面工作? Is it the progressive marker?
Here 在 (zài) is the preposition “at/in,” introducing the location 外面 (wàimiàn “outside”). It’s not the progressive marker. Compare:
Does 在外面工作 mean “working outside right now” or “has a job away from home” in general?
It’s ambiguous and depends on context. In a phone context, it likely means “he’s out working (now).” For “works in another city/away from home,” Chinese usually says 在外地工作 (zài wàidì gōngzuò) or 在国外工作 (abroad). For “outdoors (e.g., on a construction site),” 在外面工作 or a specific place like 在工地工作 is natural.
Why is 可能 placed after the subject? Can it go elsewhere?
可能 (kěnéng “might, possibly”) is a modal adverb and normally goes before the predicate: 他可能在外面工作 (default). Starting the sentence with it is also fine and more emphatic: 可能他在外面工作. Avoid splitting the place and the verb with 可能 in this sentence; 他在外面可能工作 is odd here unless you’re contrasting activities “when outside, he might (actually) work.”
Can I say 可能会 here?