Inversion Of The Subject

  And now we'll have a look at the present perfect continuous tense. As its name suggests, what we're going to do is combine the present continuous usages and the present perfect usages into a tense that basically expresses the fact that we've got an action continuing up until the present point in time. For the form of this tense, again, we're going to combine into various aspects of both the perfect and the continuous tenses. If we have a look we always begin with our subjects, then we have our, two now, helping verbs. The helping verb 'to have' for the perfect tenses, as well as the helping verb 'be' for the continuous tenses. For our subjects 'I', 'you', 'we' and 'they', we leave 'have' as 'have' and for 'he', 'she' and 'it', we conjugate it to 'has'. Because it's a continuous...  [Read more]