This study sought to investigate the impact of pre-service primary school English language teachers’ training on their post-training practice. A constructive research paradigm and qualitative method were used in the study. The participants were selected purposively, and final year pre-service primary school English trainee teachers were used to collect the research data. The data were collected in the year 2016. To collect the data, an interview schedule, an observation guide and document analyses were used. The interviews and the observations were recorded and later transcribed. The transcribed data were coded, categorized according to their similarity, and then these categories were further collapsed into themes. The findings showed that the primary school ELT trainee teachers did not have sufficient understanding of the ELT methods offered during their training which led to poor practice, as revealed in their independent teaching. Some of the reasons for the trainees’ poor understanding and practice mentioned were that the training system was not supported by the reflective teaching method, and the support of ICT. In addition, there was a significant waste of time budgeted for the course time for the completion of the training program. In relation to time, the practicum time the students stayed in the primary school during independent teaching was not sufficient to give them hands-on practice. Moreover, they did not get the required support from the school mentors and the training college supervisors. Due to these constraints, almost all the participant trainee teachers demonstrated poor performances during the lesson delivery, which indicated that they did not understand the principles of the ELT methods / English Studies / D. Litt. et Phil. (English)