Question

preterite forms of cansarse? past

Answer 1

yo me cansé
tú te cansaste
él/ella/usted se cansó
nosotros nos cansamos
vosotros os cansasteis
ellos/ellas/ustedes se cansaron

Answer 2

You need that particle, that doesn't exist in English: me, te, se, nos, os. Plus the conjugation of the verb, when you have this type of verb ended up in "se".

Answer 3

Cansarse is used with pronouns because is a reflexive verb.
@Corobicí listed perfect preterite used for recent past times like yesterday or last week.
yo me cansé
tú te cansaste
él/ella/usted se cansó
nosotros nos cansamos
vosotros os cansasteis
ellos/ellas/ustedes se cansaron

Thisis imperfect preterite used for remote past times like years ago.
yo me cansaba
tú te cansabas
él/ella/usted se cansaban
nosotros nos cansábamos
vosotros os cansábais
ellos/ellas/ustedes se cansaban

Answer 4

You're right gelidium.