English Grammar: Negative contractions of the verb "TO BE"

source: Learn English with Gill (engVid)   2017年9月9日
Learn ALL the negative contractions (isn't, aren't, wasn't, won't, and more) of the verb TO BE, in the present, past, and future tenses. This is basic English, so learn it right the first time, or review these if you're at a more advanced level -- many English students make mistakes with these! I'll even show you a non-standard, ungrammatical form, so that you'll recognise it when you hear it, though my advice is to avoid using it yourself! If you aren't sure what this lesson is about, I'm not joking -- all you need to do is click and all will be revealed!
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