... general terms, how can we tell when some form of be ϩ a present participle is a progressive tense (be as a helping verb ϩ a present participle verb) or be as a main verb followed by a gerund? Here ... is human, to forgive is divine. Infi nitive phrases differ from gerund phrases in one respect. English speakers often prefer to move longer infi nitive phrases to the end of the sentence, putting ... big concern was getting enough sleep.Fortunately, there are two reliable ways of telling them apart. We can always change a progressive verb into a simple form. In the case of our example, we...