Verb conjugation of "aburrirse" in Spanish

I did not want to give them any money so they became more aggresive and began holding my hand and said 'please, please' all the time. Finally I decided to give them some money but could not find the wallet.
Joanna started kindergarten 2 weeks ago. She got used to it very quickly and I must say that I am very pround of her. She is now 23 months old and we are going to celebrate her birthday in three weeks.
In order to get to this hidden lake one would have to row beneath a cave. On the other side of the cave the five of us were alone. The lake was surrounded by limestone mountains covered with tropical trees.