Verb conjugation of "alert" 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.
Then you can add me as a new friend in your Facebook account. I'll confirm it and you can send an email to my new address if it is publicly displayed and available. Or you can send it through SMS.
There are great museums if you like art. The most important is the Van Gogh museum. There are good restaurants and bars in the center, it is very international. I hope we can stay in touch.