Verb conjugation of "aggravate" in English

It looks like we need to invite Erika again to my home, once the cake is ready. Of course, this should be done before Sunday to stay in the chocolate cake race. We should buy cream too.
Thank you for your inquiry. Your Italian is very good. How long have you learned it? Last year I studied Spanish, which is very similar to my native Italian, but it also confuses you sometimes.
What problems did you have when you had to share your flat with your mates? Probably you were not used to it. We say that when we live close we usually discover many issues that were not known.