- all reflexives go with "être," which means they need an agreement, i.e. you need to add "e" if it's feminine, "s" if it's masculine plural, or "es" if it's feminine plural
- the auxiliary always goes right next to the verb (unless negative)
so:
je
me suis levé
(e) = I got up
tu
t'es habillé = you got dressed
il
s'est amusé = he had fun
elle
s'est couché
e = she went to bed
nous
nous sommes aimé
s = we loved each other
vous
vous êtes promené
es = you took a walk (only females)
ils
se sont marié
s = they got married
elles
se sont entendu
es = they got on well
negatives you form the same way, and you put the "ne" and the "pas" either side of the reflexive pronoun and auxiliary.
je
ne me suis
pas reveillé(e) = I didn't wake up
elle
ne s'est
pas maquillée = she didn't do her make up
nous
ne nous sommes
pas reposés = we didn't rest
Sorry if this doesn't make much sense. It's a bit confusing...