The teaching and learning of English Language is very important in our society today. This is because of the various roles it plays in the geo-political structure of the country. In Nigeria, English Language is used for communication, education, economic and social purposes. In the school system, English Language is not only taught as a subject but it is also the core subject by which over school subject is being taught.
Despite the above, less attention is given to the grammatical aspect of English in the primary school. Today, the nature of teaching and learning of English grammatical structure in the primary school has become area of great interest to teachers, researchers, and policy makers because through it the acquisition of the four language skills (listening, speaking, reading and writing) is greatly enhanced.
In view of the above, grammatical structure which entails English tenses, parts of speech, punctuation, concord, clauses and phrases, is of immense importance to the teaching, learning and mastery of English language among primary school pupils. Therefore it must not only be taught to the pupils, but it should be taken seriously at the primary school level since primary education is a better foundation on which the future depends.