这个动词应该用复数形式。
theyare是动词to be的第三人称复数形式。
在Theyliveinthecountry一句中，动词复数形式live与复数主语they一致。
In the sentence 'They live in the country', the plural form of the verb 'live' is in agreement with the plural subject 'they'.
在韩语中没有复数形式的动词，所以这也很难。
There's not really a plural form of verbs in Korean, so then again it's also difficult.
写出以下不规则名词的复数形式。
这是个不可数名词，没有复数形式。
有些名词的单数形式与复数形式一样。
这些名词的复数形式可能会造成困难。
这个单词只有单数形式，没有复数形式。
This noun appears in the singular form, never in the plural form.
用复数形式改写以下句子。
琼斯先生：名词没有单复数形式的区别。
Mr Jones: And there isn't a different form for plural nouns.
根据上下文，各种条目会被重命名为单数或复数形式。
Various items are renamed between singular and plural versions depending on their usage and context.
重写以下的词组，并把它们改为复数形式。
如果调集名词指不同的成员，动词用复数形式。
If the word group refers to different members, use a plural verb.
无论是单数形式还是复数形式都出现在了歌词当中。
Both the singular and the plural form of the word appear in the lyrics.
此外，前者使用的是单数形式，后者使用的则是复数形式。
In addition, the former used a singular form while the latter a plural form.
因此，它是用的是复数形式，在指定的条件没有被真正的上帝。
There it is used in the plural form to designate the condition of being without the true God.
他在1712年提出species的正确复数形式应该是species's。
In a grammar he brought out in 1712 he suggested that the correct plural of species was species's.
古希腊语中有双数形式，但在现代希腊语中已同复数形式合并在一起了。
Ancient Greek had the dual form but it has merged with the plural form in modern Greek.
由上衣和裤子组成的一种宽松的服装，睡觉或休闲时穿的，经常用复数形式。
A loose-fitting garment consisting of trousers and a jacket, worn for sleeping or lounging. Often used in the plural.
如果今天我提到自己时使用的是单数人称代词，那么下星期我就会使用复数形式。
If today I use a singular personal pronoun to refer to myself, next week I will use the plural form.
这就是我们用复数形式来描述弦理论，因为现在有各种不同的弦理论，试图来解释所有的问题。
That's why we speak of string theories in the plural, because there are several different string theories that attempt to make it all work.
从矢量旋转的角度出发，来考察实信号的复数形式，特别是新的解析信号的构造问题。
Topics on construction of Complex representation, especially analytic signal of real signal are studied from the viewpoint of vector rotation.
以瓦特六杆机构为例，在复数域内建立了以角度为变量的复数形式机构分叉分析方程。
Based on a case study of the Watt linkage, the bifurcation equation with Angle variables has been established in complex number field.
在英语里，用户性别未知的时候，Facebook就会默认用复数形式人称代词“they”表达。
In English, when users fail to specify what gender they are, Facebook defaults to some form of the gender neutral, plural pronoun "they."
如果引用表中存在名词或名词短语的复数形式，则查找仅匹配该名词或名词短语的复数形式。
If a plural form of the noun or noun phrase exists in the reference table, the lookup matches only the plural form of the noun or noun phrase.
如果引用表中存在名词或名词短语的复数形式，则查找仅匹配该名词或名词短语的复数形式。
If a plural form of the noun or noun phrase exists in the reference table, the lookup matches only the plural form of the noun or noun phrase.
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