Present continuous - practice forming present continuous, Practice forming present continuous tense in the present continuous tense - positive sentences, negative sentences, yes/no questions, information (wh) questions etc.. English page - verb tense exercise 2, Simple present / present continuous using the words in parentheses, complete the text below with the appropriate tenses, then click the "check" button to check. Present continuous tense - forming negative sentences, Learn how to form negative sentences in the present continuous tense. grammar reference and interactive online exercises..
Present perfect continuous tense - examples, This tense express action started continued present stopped. state ongoing action started point . http://www.studyandexam.com/present-perfect-continuous-tense.html Present progressive - definition examples - thoughtco, The present progressive verb construction conveys sense ongoing action present time.. https://www.thoughtco.com/present-progressive-grammar-1691673 Present perfect tense: simple present - uazone.org, Present perfect tense: simple present perfect present perfect continuous. http://www.uazone.org/friends/esl4rus/presentperf.html