An exercise about the conditions that govern the use of the auxiliary "have" in British English

Hi freelancers, I have a class exercise in a subject called "Linguistic Description of English" and here is the descriptions of the requirements: In casual speech, particularly in British English, "got" is often added after certain uses of the verb "have" (e.g. I have got news for you). Your task is to try to work out the conditions that govern this phenomenon, by constructing examples with and without got using the following expressions: 1. have green eyes 2. have toothache 3. have a nightmare 4. have a shower 5. have an older sister 6. have a baby 7. have a coffee 8. have to work 9. have the secretary type the letter 10. have the letter typed by the secretary As part of your investigation, try doing each of the following and comment on what happens: * Change the tense from present to past or vice-versa. *Put your examples into progressive aspect. * Construct corresponding negative and interrogative examples. On the basis of your analysis, can this use of "have got" be regarded simply as the present-perfect of the verb get (with the sense of ‘obtain’).