Word prediction is an intelligent word processing feature that can help students and other persons simply by reducing the number of keystrokes required for typing text. The Natural Language Processing (NLP) based n-gram model is a statistical language model for fast messaging. This model is used to assign probabilities to sequences and sentences. This methodology is sort of tough in alternative languages with the exception of English. The model goes through the corpus of English words and predicts the next word using n-gram. This includes hunting numerous reviews and analysis papers concerning completely different languages, corpus and prediction techniques, and the way these prediction techniques will facilitate us in the next word prediction application. It is becoming more and more important because of the key role that it plays in various domains. This is often a difficult task since the word presents a high variance.