With report/comment verbs or phrases (guess, imagine, suppose), I reckon Gloria's been up in traffic., With the phrase This is/ It's/ That's the first / second/ only time, This is the first time he's been late., When an event is unusual or unique in your life(superlative and ever or never), I've never met anybody who is so absent-minded., When commenting on the present results of smth in the past (with appear, seem, sound), He sounds as if he has run all the way here., to describe states or events that have continued since a time in the past (with since, ever since), He's been a bit more careful since he had that warning., to describe long-term or repeated feelings and thoughts about past events, I've often wondered why he decided to become a teacher., PP+another PP to describe 2 states that have existed since a time in the past, Since I've known him, he's always worn the same sweater., PP+Future in time clauses (after when, as soon as, until, before) we use PP to refer to the future, We'll continue the meeting when he's recovered his composure..

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