tā méiyǒu huídá wǒ.

没有 is used to negate something that did not happen. So 他没有回答我 means He did not answer me.

A simple way to think about it:

• 不 = does not / is not / will not / generally not
• 没有 = did not / have not

So:

• 他不回答我 = He does not answer me / He refuses to answer me / He isn’t answering me in general.
• 他没有回答我 = He did not answer me.

In this sentence, the speaker is talking about a completed non-action in the past, so 没有 is the natural choice.

Yes. In everyday speech, 没 is very common.

So these both work:

• 他没有回答我。
• 他没回答我。

They mean the same thing.
没有 can sound a little fuller or slightly more formal, while 没 is very common in casual conversation.

Mandarin usually follows Subject + Negation/Adverb + Verb + Object.

So here:

• 他 = he
• 没有 = did not
• 回答 = answer
• 我 = me

That gives:

• 他没有回答我。
• He did not answer me.

This is similar to English in a broad sense, but Mandarin does not need a helper verb like did. The negative word 没有 goes directly before the verb.

In Mandarin, pronouns usually do not change form the way English pronouns do.

So:

• 我 can mean I or me
• 他 can mean he or him

The role is shown by word order, not by changing the pronoun’s form.

Examples:

• 我回答他。 = I answer him.
• 他回答我。 = He answers me.

So in 他没有回答我, 我 is the object, so in English we translate it as me.

Yes, 回答我 literally means answer me, and it is natural in Mandarin.

Just like in English, answer someone can mean:

• reply to that person
• respond to what they said or asked

So 他没有回答我 can mean:

• He did not answer me.
• He did not reply to me.
• He did not respond to me.

Mandarin does not need to mention my question if it is already understood from context.

Yes. That means:

• He did not answer my question.

Breakdown:

• 他 = he
• 没有 = did not
• 回答 = answer
• 我的问题 = my question

So:

• 他没有回答我。 = He didn’t answer me / reply to me.
• 他没有回答我的问题。 = He didn’t answer my question.

The second one is more specific.

All of these can relate to answering or replying, but they are used a little differently.

• 回答 = answer; respond
  Very common and general. Works well in many situations.
• 回复 = reply; respond
  Often used for messages, emails, comments, or formal responses.
• 答复 = reply; answer
  Often more formal, and can sound official.

For this sentence, 回答 is a very natural and standard choice.

Examples:

• 他没有回答我。 = He didn’t answer me.
• 他没有回复我的消息。 = He didn’t reply to my message.
• 公司还没有答复我们。 = The company has not replied to us yet.

Because 没有 already negates the action, and when a verb is negated with 没有, you normally do not use 了 after the verb.

So:

• 他回答了我。 = He answered me.
• 他没有回答我。 = He did not answer me.

Not:

• 他没有回答了我。 ✘

This is a very important pattern:

• Verb + 了 for a completed action
• 没有 + Verb for a completed action that did not happen

Yes, depending on context.

没有 + verb can often cover both:

• did not
• has not

So 他没有回答我 could mean:

• He didn’t answer me.
• He hasn’t answered me.

The exact meaning depends on the situation and time context.

For example:

• If you are talking about yesterday, it likely means He didn’t answer me.
• If you are still waiting for a reply now, it may mean He hasn’t answered me.

In writing, 他 usually means he. But in spoken Mandarin, 他, 她, and 它 are all pronounced tā.

So when you hear tā, you cannot tell from pronunciation alone whether it means:

• he = 他
• she = 她
• it = 它

You know from context.

So the spoken sentence could sound the same whether the person is male or female, but the written character tells you which one it is.

Yes. It is written méiyǒu:

• 没 = second tone
• 有 = third tone

A learner should especially remember that 有 keeps its third tone here in dictionary form.

In natural speech, the full phrase flows together smoothly as méiyǒu. It is one of the most common words in Mandarin, so it is worth practicing as a chunk rather than as two separate words every time.

Yes.

As a verb, it means to answer:

• 他回答我。 = He answers me.

As a noun, it means answer or response:

• 这个回答很好。 = This answer is very good.

In your sentence, 回答 is clearly a verb because it comes after 没有 and before the object 我.

That is not the most natural way to say it in standard Mandarin.

A better sentence is:

• 他没有回答我。 = He did not answer me.
• 他没有给我回复。 = He did not give me a reply.

Why? Because 回答 is very commonly used directly as a verb: 回答 + person/question.

So 回答我 is the natural pattern here.

It sounds neutral and standard.

• 他没有回答我。 is natural in both speech and writing.
• 他没回答我。 is slightly more casual because of 没.
• 他未回答我。 would sound more formal or written, and is much less common in everyday speech.

So the original sentence is a very good basic, natural Mandarin sentence.

You could stress 我 in speech, or make the sentence more explicit in writing.

For example:

• 他没有回答我。 = He didn’t answer me.
• 他没有回答我，回答了别人。 = He didn’t answer me; he answered someone else.

If you want strong contrast, Mandarin often shows that through context or by adding another contrasting phrase, rather than changing the pronoun itself.