This sentence would be more like "Hat sie im Spiegel ausgesehen?". "Sehen" is "to see", whereas "to look" is "aussehen".
That's misleading; "to look" is "aussehen" only in the sense of "have a certain appearance" (e.g. "you look stunning tonight").
But not in the sense "take a look" (e.g. "she looked through the window" or "she looked into the mirror").
No. That would be Hat sie in den Spiegel gesehen? (or geschaut or geguckt) and not Hat sie sich im Spiegel gesehen?.
How about "Hat sie sich selbst im Spiegel gesehen?"? Is it viable, wrong or unnecessary to the word" selbst"?
It's possible but I think it means something slightly different.
- Hat sie sich im Spiegel gesehen? = Did she see her reflection in the mirror? Or is she a vampire and she saw nothing at all? (Basically: did the action "she saw herself in the mirror" happen?)
- Hat sie sich selbst im Spiegel gesehen? = Did she see herself in the mirror? Or was it a magic mirror and she saw someone else instead? (Basically: Is the person she saw "herself"?)
Hat sie selbst den Spiegel gesehen?
Hat sie den Spiegel selbst gesehen?
Thanks! So is it safe to assume "sich" is the concept of oneself being on the object side of things (she sees herself, she hurts herself), while selbst is on the doer side (she eats it herself)?
I don't think you need to use 'at oneself' in English when looking in the mirror. It is assumed that 'looking in the mirror' means 'looking at yourself in the mirror'. That's what mirrors are for...
Not necessarily. What about wing/rear-view mirrors in a car etc? Also, you can look at other people or things mirrors; oneself is just the default. Admittedly the at oneself is unnecessary in many cases due to context, but that doesn't mean it's unnecessary in isolation, nor that it shouldn't be included even if the context allows it to be left out.
True. But in this sentence, adding "at herself" emphasizes the sarcastic tone of the sentence--"She's really going out looking like THAT? Has she looked at herself in the mirror?"
Because the verb hat is third person singular (he, she, it), so sie must mean "she" here.
If it had been "they", then sie would take the verb form haben.
Also, "they looked themselves" sounds odd to me in English -- "they saw themselves" or "they looked at themselves" would sound better to me (and given that the German uses sehen rather than sich ansehen, I would prefer "saw").
Personal pronouns (including sich) generally come as closely after the verb as possible.
So here, sich has to be right after sie (the subject, which comes even closer to the verb in a yes-no question).