It is very common to find confused students when it comes to tenses. I mean...when I mention about tenses, it seems like all types of tenses come rushing into these students' minds at the same time. They usually know about the addition of 'ed' at the end of verbs in the simple past tense case, but often than not they are confused about the addition of 's' in the simple present tense (singular...plural...noun...verb...arghh!). Apart from that, they are also not very sure about when or where to use which tense while speaking or writing. Struggling, they will usually mix all the tenses, making their speech or writing full with grammatical errors. PRESENT TENSE Noun singular noun(-s) eg: boy plural noun(+s) eg: boys Verb singular verb(+s) eg: plays plural verb(-s) eg: play The Sentence singular noun + singular verb The [boy] [plays] football. plural noun + plural verb The [boys] [play] football.