This is a regular verb. It follows the conjugation pattern of the verb comer.
PresentPresente
Él pretende aprender francés en un mes.
He aims to learn French in one month.
ImperfectPretérito imperfecto
Ellos pretendían vender la casa muy cara.
They were hoping to sell the house at a very high price.
FutureFuturo
La empresa pretenderá reducir los costes este año.
The company will aim to reduce costs this year.