PRESENT PERFECT CONTINUOUS TENSE - NEGATIVE ‪@ENGLISHISEASY1975‬

It is very necessary to have the knowledge of making Negative sentences. You can learn the pattern of Negative sentence from this video of Present Perfect Continuous Tense. And, when two auxiliaries are used in a sentence, then the word 'not' should be placed between the two auxiliaries. So, if you want to be well versed in using Negative sentence, practise the Exercise sentences given in the link below. https://drive.google.com/file/d/15I6d... And, the answer key for the last class has also been given in the below link. https://drive.google.com/file/d/10iNv... Utilize it.