[Grammar] ‘upset with’ VS ‘upset about’

[northpath]

Are both prepositions about and by suitable in these sentences?
1.Your mother is upset about/by your misbehavior, Austin.
2.Liz is very upset about/by her uncle's death.
3.Lisa was really upset about/by the way her father treated her.

 

[ChinaDan]

Suitable - yes. Not precisely the same in meaning, however. "Upset by" is a direct relationship. The event upset me. "Upset about" is more generalized. It can be indirect, maybe some aspect of the event upset me, or the event affected something else which in turn has upset me.

Most of the time, you can probably use either, however.

 

[emsr2d2]

I'm upset about climate change but I'm upset with the politicians who refuse to acknowledge it.