标题：Good的副词形式及Stay的过去式
文章：
在英语中，形容词“good”的副词形式是“well”，而动词“stay”的过去式是“stayed”。以下是对这两个词的详细解释：
1. Good的副词形式：
“Good”作为形容词，表示“好的”，其副词形式“well”用来修饰动词，表示“好地”或“适当地”。例如：
She sings well.（她唱得很好。）
He runs well.（他跑得很好。）
2. Stay的过去式：
“Stay”是一个不规则动词，其过去式“stayed”用来表示过去某个时间点或时间段内保持在某处或某种状态。例如：
I stayed at home yesterday.（我昨天待在家里。）
They stayed with us for a week.（他们和我们住了整整一周。）
信息来源：
Oxford Dictionaries: https://www.oxforddictionaries.com/definition/english/good
Grammarly: https://www.grammarly.com/blog/stayirregularverb/
常见问题清单及解答：
1. 问题：Can "good" be used as an adverb?
解答：No, "good" cannot be used as an adverb. Its adverb form is "well."
2. 问题：What is the past participle of "stay"?
解答：The past participle of "stay" is also "stayed."
3. 问题：How do I know when to use "well" and "stayed"?
解答：Use "well" as an adverb to describe the manner of an action. Use "stayed" as the past tense or past participle of the verb "stay."
4. 问题：Can "well" be used in negative sentences?
解答：Yes, "well" can be used in negative sentences. For example, "She sings not well."
5. 问题：Is "stayed" always followed by a preposition?
解答：No, "stayed" can be followed by a preposition, but it is not always necessary. For example, "I stayed at the hotel" or "I stayed home."
6. 问题：What is the difference between "well" and "good" in a sentence?
解答："Well" is an adverb that modifies a verb, while "good" is an adjective that describes a noun or pronoun. For example, "She sings well" (adverb) vs. "She is a good singer" (adjective).
7. 问题：Can "well" be used in the present perfect tense?
解答：Yes, "well" can be used in the present perfect tense to describe an action that started in the past and continues to the present. For example, "I have been singing well."
8. 问题：Is "stayed" the same as "stayed at"?
解答：“Stayed” is the past tense/past participle of the verb “stay,” while “stayed at” is a phrasal verb that indicates staying in a specific place. For example, "I stayed at home" but "I stayed in the hotel."
9. 问题：Can "well" be used to describe a person?
解答：Yes, "well" can be used to describe a person, especially in the context of their behavior or actions. For example, "He is wellbehaved."
10. 问题：How do I form the question form of "Stayed"?
解答：To form the question form of "stayed," you use the auxiliary verb "did" before "stayed." For example, "Did you stay at home last night?"
