Translation of perpetual in Spanish

Thanks for the advice but I know this web site. I'm always open to suggestions. Tell me how can I help you with the correct form of words. This is very important owing to the feedback.
Considering that the lake was full of crocodiles we gave in to their demand and bought a can of Coca Cola. It cost us two dollars, and considering Cambodia's wholesale price they got plenty of markup.
In Guatemala this is one of our biggest problems at the moment: young and pore people take drugs and drink alcohol because they are depressed and bored. The capital has become very dangerous.