English class. Grammatical categories Verb Tenses and Aspects.

table, closeup, board, form, school, work, simple, education, science, learn, future, negative, study, college, University, lesson, language, write, teach, word, question, IT, do, class, blackboard, classroom, not, continuous, will, chalk, english, rule, does, lecture, she, chalkboard, he, am, are, auxiliary, aspect, grammar, tense, ed, did, they, verb, indefinite, grammatical, syntactic,