Thanks, but I am a bit confused now. Can you use 'cambiare' with both 'essere' AND 'avere'? Is there a difference in meaning? Thanks again.
Yeah, there's a bunch of verbs that can take both auxiliaries: at http://www.scudit.net/mdwausiliare.htm they're in the two lists at the end, and this case (the verbs changing auxiliary depending on transitiveness) is the last list in the page.
- Ho cambiato macchina: I changed car [transitive]
- Mi sono cambiato: I changed clothes [reflexive]
- Sono cambiato: I changed [intransitive]
thanks for this and other explanations you've given in the past very clear f.formica
Not so sure if I'm really getting it, is this sentence siete cambiate implies that the speaker is speaking to a bunch of female? Thus it takes feminine plural? Thanks a lot!
Yep :) When the auxialiary is "essere" the participle is declined according to gender and number of the subject.