English distinguishes between 'hung' and 'hanged' in the past tense depending on the meaning i.e. 'I hung my washing out to dry', but 'He hanged himself'. I can't think of any other example of this in English, but do other languages change the past tense form like this depending on context, either in only a few instances or routinely with many verbs?
Hung/Hanged
The only other example I can think of is "was" and "were" but this is a little different.