The verb pensar (conjugation) means "to think". It is irregular in the present tense. The e changes to ie in all forms except nosotros and vosotros.

When followed by an infinitive, pensar is used to indicate plans or intentions.

Pienso viajar a Venezuela.

      I think (plan) to travel to Venezuela.

¿Piensas viajar?

      Are you thinking (planning) to travel?

Él piensa visitar los templos.

      He thinks (is planning) to visit the temples.

Pensamos salir dentro de quince días.

      We think (are planning) to leave in 15 days.

Ellos piensan conocer un lugar turístico.

      They are thinking to know (visit) a tourist area.

Pensé mucho en ella

      I thought a lot about her.