Learning a second or foreign language has challenged many a learner, and there is no shortage of theories proposed by specialists in a hope to make this intriguing task a bit simpler. The fact is that we are still far away from a perfect understanding of the processes involved in learning a second language which make it so different from acquiring L1. What we do know for sure is, however, that the ability to speak a foreign language requires more than a mere knowledge of its grammatical and semantic rules. Learners must acquire the knowledge of how native speakers use the language naturally...