If the verb is followed by a verb in the infinitive, the pronoun comes before the infinitive:
- j'aime la regarder - I like to watch it
- nous allons vous attendre à la gare - we're going to wait for you at the train station
Before a vowel or a silent -h, me changes to m', te changes to t', le and la change to l':
- elle m'aime - she loves me
- je t'aime - I love you
- nous l'avons mangé - we ate it
In the perfect tense, the pronoun goes before the conjugated form of avoir or être:
- je l’ai vu ! - I saw it!
- ils les ont mis dans leurs sacs - they put them in their bags
With negatives the pronoun comes after the ne:
- je ne le mérite pas - I don’t deserve it
- il ne la voit plus ! - he doesn’t see her anymore!