In all of language learning, one word incites fear, disgust and exasperated sighs; one word that causes learners to steer clear of some languages; one word that dominates student study sessions:
Grammar. Throughout my experience in the classroom, I've noticed that grammar is the greatest hurdle for students - regardless of language. It's what teachers spend the most time explaining, what self-learners put of learning. It's a stumbling block.
But it doesn't have to be.