They end that way because they are in "infinitivo", infinitive. It is the equivalent of saying "to x"
Eg.
Aprender - to learn
Vivir - to live
Encontrar - to find
The conjugation (-er, -ir or -ar) depends on each word, it is a matter of memorising them, I'm afraid.
Hope this helped :)
Answer:
It says you have to listen to something. We can't help you with that.
Explanation:
Eres estupido.
1. El caballero repite que el puede realizar su tarea.
2. Ella tiene probablemente unos treinta.
Thats the meaning in Spanish. I hope it helps.
