<p>是否 roughly maps to <em>whether</em> in a yes-no interrogative sentence or clause.</p>
<p>For your sentence, you should use 不知道 or 不确定 instead of 没确定. 没确定 means <em>haven't confirmed yet</em>. Also 听得清 (could hear) is more polite than 听清了 (have heard). If the context allows, it is more natural to omit 我说的话.</p>
<blockquote>
<p>I wasn't sure if you could hear me clearly.</p>
<p>我不确定你是否听得清(我说的话)。</p>
</blockquote>
<p>General usage of 是否 is pretty straight-forward. You can check out <a href="http://dj.iciba.com/%E6%98%AF%E5%90%A6-1.html" rel="noreferrer">Iciba</a> for examples.</p>

CC BY-SA 3.0
2015-09-19T22:00:53.807Z
2015-09-19T22:00:53.807Z
2020-06-17T09:50:11.587Z
NS.X.
<p>I'm not entirely sure what is suppose to follow 是否. For example, I'd like to say:</p>

<blockquote>
  <p>I wasn't know (or wasn't sure) if you heard me clearly.</p>
</blockquote>

<p>I'm not sure if this is how it should be translated:</p>

<blockquote>
  <p>我没确定你是否听清楚出我刚说的话</p>
</blockquote>

<p>I'm also curious if this is correct:</p>

<blockquote>
  <p>我没确定你是否听到了我。</p>
</blockquote>

<p>How should the above be properly translated? And, more importantly, how do I use 是否 in general?</p>

CC BY-SA 3.0
2015-09-20T10:54:18.993Z
In your English sentences, consider using whether instead of if :)
Philipp
<translation><grammar>
How to use correctly use 是否?
# How to use correctly use 是否?

(Asked by: username_0 on 2015-09-19)

I'm not entirely sure what is suppose to follow 是否. For example, I'd like to say:

> I wasn't know (or wasn't sure) if you heard me clearly.

I'm not sure if this is how it should be translated:

> 我没确定你是否听清楚出我刚说的话

I'm also curious if this is correct:

> 我没确定你是否听到了我。

How should the above be properly translated? And, more importantly, how do I use 是否 in general?

**Tags:** translation, grammar

> **Comments:**
> **username_1**: In your English sentences, consider using whether instead of if :)  

---

## 1 answers

### Answer by username_2 on 2015-09-19. Score: 6 | Accepted answer

是否 roughly maps to *whether* in a yes-no interrogative sentence or clause.

For your sentence, you should use 不知道 or 不确定 instead of 没确定. 没确定 means *haven't confirmed yet*. Also 听得清 (could hear) is more polite than 听清了 (have heard). If the context allows, it is more natural to omit 我说的话.

> I wasn't sure if you could hear me clearly.
>
> 我不确定你是否听得清(我说的话)。

General usage of 是否 is pretty straight-forward. You can check out [Iciba](http://dj.iciba.com/%E6%98%AF%E5%90%A6-1.html) for examples.


---

