Questions & Answers about Je compare ce roman et ce film.
Comparer is the infinitive form (to compare). In a normal sentence with a subject (je = I), you need a conjugated verb.
In the present tense of comparer:
- je compare
- tu compares
- il / elle compare
- nous comparons
- vous comparez
- ils / elles comparent
So je compare means I compare / I’m comparing.
Je comparer would be ungrammatical in standard French.