范文：
The word "pass" has two main past tense forms depending on the context in which it is used.
As a verb, the past simple form of "pass" is "passed." For example:
He passed the exam with flying colors.
The movie passed by without leaving much of an impression.
As a noun, the past participle form of "pass" is also "passed." For example:
The bill has been passed by both houses.
The pass was granted after a thorough review.
常见问答知识清单：
1. What is the past simple form of "pass"?
2. How do you use "pass" as a past participle?
3. Can "pass" be used as both a verb and a noun in the past tense?
4. What is the difference between "passed" and "passed by"?
5. How do you form the past continuous tense of "pass"?
6. Can you give an example of "pass" used as a noun in the past participle form?
7. What is the past perfect tense of "pass"?
8. How do you use "passed" in a sentence with "by"?
9. Is there a difference in meaning between "passed" and "passed by" when used as a verb?
10. Can "pass" be used in the past tense to describe an event that happened a long time ago?
详细解答：
1. What is the past simple form of "pass"?
The past simple form of "pass" is "passed." It is used to describe an action that was completed in the past. Example: "She passed her driving test."
2. How do you use "pass" as a past participle?
"Passed" is used as a past participle when "pass" is used as a verb. It is often used in perfect tenses. Example: "The movie has been passed."
3. Can "pass" be used as both a verb and a noun in the past tense?
Yes, "pass" can be used as both a verb and a noun in the past tense. As a verb, the past simple is "passed," and the past participle is also "passed." As a noun, the past participle form is "passed."
4. What is the difference between "passed" and "passed by"?
"Passed" is the past simple form of the verb and means that an action was completed. "Passed by" is used as a noun phrase and means to go by or past something. Example: "The train passed by the station."
5. How do you form the past continuous tense of "pass"?
The past continuous tense of "pass" is formed by combining "was" or "were" with "passing." Example: "She was passing by the store when she saw her friend."
6. Can you give an example of "pass" used as a noun in the past participle form?
Yes, "pass" as a noun in the past participle form is "passed." Example: "The passage of the new law was a significant event."
7. What is the past perfect tense of "pass"?
The past perfect tense of "pass" is formed by combining "had" with the past participle "passed." Example: "She had passed her exam before she left for the trip."
8. How do you use "passed" in a sentence with "by"?
"Passed by" is used to indicate going past or by something. Example: "The children passed by the library on their way to school."
9. Is there a difference in meaning between "passed" and "passed by" when used as a verb?
Yes, "passed" can mean to go by or past something, while "passed" as a verb (past simple) means that an action was completed. Example: "He passed by the shop" (he went past the shop) vs. "He passed the exam" (he completed the exam).
10. Can "pass" be used in the past tense to describe an event that happened a long time ago?
Yes, "pass" can be used in the past tense to describe an event that happened a long time ago, depending on the context. Example: "The treaty was passed many years ago."
