Paraître
Some verbs have the particularity to admin both auxiliary avoir and être in their conjugation. This is the case for paraître which is normally using auxiliary avoir except when it is related to a book publication when auxiliairy être is used.
Ce film nous a paru intéressant par son suspense.
==> auxiliary avoir
Ce livre est paru le mois dernier.
==> auxiliary être
Another particularity of paraître is to have a circumflex accent on the "i" in front of a "t" eg: il paraît is the 3rd singular form for the indicative present/
Spelling change of 1990 authorizes to remove the circumflex accent of paraître which can be written paraitre.