Các dạng của động từ
Dạng nguyên
/rɪd/
Past Simple
Past Participle
Câu ví dụ
Dạng nguyên · rid
- These plants rid the air of toxins.
Past Simple · rid
- We finally rid the garden of weeds.
- She rid without any hesitation.
- They rid it again the following morning.
- He didn't rid anything at the meeting.
Past Participle · rid
- The city has been rid of its old factories.
- He has rid it many times before.
- I have already rid it more than once.
- She has just rid the very same thing.
Thì chính
| Hiện tại đơn | Quá khứ đơn | Hiện tại hoàn thành |
|---|---|---|
I rid he / she / it rids | I rid | I have rid |
| Hiện tại tiếp diễn:I am ridding · he / she / it is ridding | ||
Hướng dẫn ngữ pháp
The verb "rid" belongs to the AAA group — all three principal parts are identical: "rid" / "rid" / "rid". The spelling never changes, whether you use it in the present tense, past simple, or as a past participle in a perfect or passive construction.
Use "rid" in the present to describe habits, facts, or scheduled events: "We rid the figures every quarter." The same form serves as the past simple for completed actions: "They rid the budget before noon." With auxiliary verbs it functions as the past participle: "She has already rid her quota." Because all three forms look the same, an auxiliary (have, has, had) or a past-time marker (yesterday, last year) provides the tense signal.
AAA verbs are mostly short, high-frequency words ending in -t or -d, such as cost, cut, hit, hurt, let, put, set, and spread. Because they never inflect, you only need to learn one spelling. The difficulty is that context — an auxiliary verb, a time adverb, or the surrounding narrative — must indicate which tense is intended.
Quick-reference rule: when "rid" follows have, has, or had, it is acting as a past participle ("she has rid the price twice"); when it follows did not or appears in a question with did, it is the infinitive in a past-tense structure ("did they rid it correctly?"); in all other uses it is most likely present simple or a base-form infinitive.
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