1. В том, что мы не ставим перед ним вс глагол don't/doesn't, а используем отрицательную форму глагола (с частицей not).
I am not a doctor [не I don't be a doctor/I don't am a doctor]
We are not doctors [не We don't be a doctor/We don't are a doctor]
He is not a doctor [не She doesn't be a doctor/She doesn't is a doctor]
2. Так же - мы не ставим вс глагол do/does на начало предложения, но ставим одну из форм глагола to be (в зависимости от лица).
Am I a doctor? [не Do I be a doctor?/Do I am a doctor?]
Are we doctors? [не Do we be doctors?/Do we are doctors?]
Is he a doctor? [не Does he be a doctor?/Does he is a doctor?]
3. always (всегда), often (часто), every day (каждый день), every year (каждый год), every week (каждую неделю), usually (обычно), sometimes (иногда), seldom (редко) (подробный список можно посмотреть в Интернете)
Henry liked Spring Holidays, because he liked the weather and St. Patrick’s Day. In that day people wear green. Easter was a good holiday, too. You could see the Easter Rabbit, hunt for eggs and find candy.
Sandra liked Summer Holidays, like Independence Day. She always went to the air show to see airplanes. In the evening they’d shoot off fireworks. Mother’s Day and Father’s Day were usually in the summer, too.
Judith loved Fall holidays most. Sweetest Day wasn’t that popular, but it was a nice day and sometimes she got candy. Halloween was such a great time. Thanksgiving was just a few weeks later. Between Halloween’s candy and Thanksgiving’s turkey was the best food season of the year.
Winter holidays were Thomas’ favourites. Christmas was a great time to be with family. New Year was exciting, because everyone stayed up late and cheered when the year changed, and there were often fireworks.
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