The natural way of learning a language is how a child picks up his / her mother tongue.  It starts with hearing, seeing, reasoning, and using.  The learning happens over several months.  The speaking starts with an assortment of words, followed in time with more words in combination.  Then come simple sentences, and gradually figuring out the basics of grammar – gender, tense, plurality.  The child then eventually moves on to learning the script, and only much later, formal grammar.