Penser + Prepositions

penser que - to think that

Je pense qu’il est heureux - I think he’s happy. 

(Remember that this construction takes the subjunctive if it’s a question or negative.)

Pensez-vous qu’il soit heureux? - Do you think he’s happy?

Je ne pense pas qu’il soit heureux. - I don’t think he’s happy. 

penser à - to consider, to have on your mind

Je pense à mes devoirs - I’m thinking about my homework

Pensez-vous à ce qu’il a dit? - Are you thinking about what he said? 

(Remember that the pronoun ‘y’ is used for this construction.)

J’y penserai avant de partir. - I will think about it before leaving. 

penser de - to have an opinion on

Tu penses quoi de ma maison? - What do you think about my house? 

(Remember that the pronoun ‘en’ is used for this construction.)

Qu’en penses-tu? - What do you think about it?


(source: http://jenaipassommeil.tumblr.com/post/114804876544)