New answers tagged progressive-aspect
Yes, this is fine. You are saying "While he is laughing, he should be ashamed", and this is a valid sentiment and a valid way to write it.
In English linguistics, we tend to use "tense" and "aspect" in a way that is not so much oriented to language universals as it is convenient for describing some superficial details of English morphology. Tense is expressed with verb endings or irregular stems; aspect is expressed by choice of auxiliary verb. This follows the description proposed in Chomsky'...
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