以下の英文の和訳をお願いします。 1.We can make requests (and also questions, suggestions and statements) less direct (and so more polite) by using verb forms that suggest ‘distance’ from the immediate present reality: Past tenses are often used to do this. Progressive forms can be used in the same way. Past progressives give two levels of distancing. 2.With some verbs describing mental states (e.g. find, realise, regret, think, understand) we can use the present continuous (= progressive) to emphasise that we have recently started to think about something or that we are not sure about something. 3.）This can be explained, in part, by the observation that stative verb meanings are inimical to the idea that some phenomenon is ‘in progress’. States are ‘like-parted’ in that every segment of a state has the same character as any other segment: no progress is made.