A1
S + am / is / are + not + …
Động từ to be — thể phủ định
Explanation
Thêm not ngay sau to be. Dạng rút gọn: is not → isn't, are not → aren't. Riêng am not không có dạng rút gọn chuẩn, người ta viết I'm not. Bẫy thường gặp: Không dùng don't với to be: I don't be tired ✗, I am not tired ✓.
Examples
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Practice
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Learn “S + am / is / are + not + …” effectively
The grammar point “S + am / is / are + not + …” (Động từ to be — thể phủ định) is one of the key structures at CEFR 1. To use it fluently, you need to understand the contexts where it's used and practice regularly.
Study tip: read the examples aloud many times to build a natural reflex. Then try making your own sentences for your own situations. Use the audio button to hear and practice accurate pronunciation.
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