The aim of this study is to examine how National Diploma (ND) II students of Kogi State Polytechnic, Lokoja use concord. The Study adopts the systemic approach to be able to give account of concord relationships in detail. The main instrument used for the collection of the data analysed in the study is test administration in classroom. A total of sixty objective questions and two essay questions were administered to the one hundred and twenty students selected randomly from four departments. The results of the four departments based on the overall average scores of the categories of concord tested were shown. The results were presented through percentage rating. The results showed that Business Administration department scored 50.5% in subject-verb agreement, Electrical Engineering department got 48.1%, Maths/Computer Science department made 42.9% and department of Urban and Regional planning scored 57.2%. On Pronoun-Antecedent Concord, Business Administration scored 62.4%. On Electrical Engineering department got 66.5%, Maths/Computer Science department made 59.7% while Urban and Regional Planning department got 58.9% equally, on tense concord, Business Administration department had 55.7%, Electrical Engineering department scored 60.5%, Maths/Computer Science department made 59.7% and Urban and Regional Planning department scored 61.6%. The study discovers that students in this polytechnic lack the basic knowledge of the correct use of concord. It reveals that the subjects did not have enough knowledge of the rules of concord that can aid them to use English Language appropriately. It also reveals that the subjects did not have adequate knowledge of tense as regards using the present and past tense. Finally, the study shows that all types of concord in English, especially subject-verb, pronoun-antecedent and tense concords considered in this work are problematic to our subjects.