They both ?play soccer，don't ?they？
句子語法結構分析如下
主語：They（他們）
同位語：both（兩個）
謂語：play （行為動詞做句子簡單謂語）（踢）
賓語：soccer (英式足球拼寫法）
both 作主語的同位語，他們兩個都踢足球
Ther‘re both ?going ?to ?the ?concert？
句子語法結構分析如下
主語：They（他們）
同位語：both （兩個）
謂語：is going （助動詞+行為動詞現在分詞構成句子復合謂語）
狀語：to the concert （去聽音樂會）
BOTH 放在BE 動詞之後，行為動詞之前，他們兩個都要去聽音樂會
為什麽第壹個沒有be動詞?而第二句有
第壹句的句子結構為：主語+謂語+賓語 結構， 句子謂語由行為動詞play充當
第二句的句子結構為：主語+謂語+狀語結構， 助動詞is +行為動詞現在分詞構成句子復合謂語，也就是現在進行時態，不過這裏是現在進行時態表示將來的意義
（備註：請務必記住BOTH 做同位語在句子放置位置：BE 動詞之後 ；行為動詞之前）
例如：They both want to go there （both在行為動詞 want的前面）
例如：They are both good students (both 在系動詞are ?的後面）
答題不容易，如果滿意，請及時采納，謝謝！
both形容詞 adj.
1.二者, 兩者都
代詞 pron.
1.二者
副詞 adv.
1.二者, 二者都
連接詞 conj.
不僅…而且…；…和…都
adj. 二者，兩者都?
pron. 二者?
adv. 二者，二者都?
conj. 不僅…而且
兩個；兩個都 You use both when you are referring to two people or things and saying that something is true about each of them. ?
She cried out in fear and flung both arms up to protect her face...?
她嚇得大叫，並且掄起雙臂護住了自己的臉。
Put both vegetables into a bowl and crush with a potato masher.?
把這兩樣蔬菜都放進壹個碗裏，然後用搗土豆器把它們搗碎。
Both is also a quantifier.?
Both of these women have strong memories of the Vietnam War...?
這兩位婦女都對越南戰爭記憶深刻。
We're going to Andreas's Boutique to pick out something original for both of us.?
我們要去安德烈亞斯禮品店為我們倆挑選壹些新奇玩意兒。
Both is also a pronoun.?
Miss Brown and her friend, both from Stoke, were arrested on the 8th of June...?
布朗小姐和她的朋友於6月8日被逮捕，她們兩人都來自斯托克。
Will there be public-works programmes, or community service, or both?
將會實施公***工程項目還是社區服務項目，還是二者都有？
Both is also an emphasizing pronoun.?
He visited the Institute of Neurology in Havana where they both worked...?
他訪問了兩人都曾工作過的哈瓦那的神經病學研究所。
'Well, I'll leave you both, then,' said Gregory.
“好吧，那我就不打擾妳們倆了。”格雷戈裏說道。Both is also a predeterminer.?
Both the band's writers are fascinating lyricists...?
樂隊的這兩位作詞人都是非常出色的填詞高手。
Both the horses were out, tacked up and ready to ride. 兩匹馬都牽出來裝上了馬具，可以騎了。
不僅…而且…；…和…都；既…又… You use the structure both...and when you are giving two facts or alternatives and emphasizing that each of them is true or possible. ?
Now women work both before and after having their children...?
現在婦女在生孩子前後都要去工作。
Any such action would have to be approved by both American and Saudi leaders.?
任何這樣的行動都必須獲得美國和沙特領導人雙方的批準。
註意以下各句含義相同：
Both boys have been ill, Both the boys have been ill, Both of the boys have been ill, The boys have both been ill（兩個男孩都病了）。不能用 Both of boys have been ill，但在和代詞壹起使用時可以說 Both of them have been ill（他們兩個都病了）。亦見all詞條下的說明。
1.He charged at me with his head down and both fists flying.
他低著頭，揮舞雙拳朝我沖來。?
2. When we use "he", we generalize for both sex.?
當我們用he時，我們泛指男女。?
3. He held both sides of the parka hood closed against the snow.?
他捏緊皮外套上風帽的兩邊以擋住襲來的飛雪。?
4. The captain cares the safety of both the crew and the passengers.?
船長為船員和旅客們的安全操心。?
5. Bill is both a good swimmer and a good cook.?
比爾不僅是個遊泳好手，而且是個烹調能手。?
6. Mental and physical deterioration both occur naturally with age.?
隨著年齡的增長，心智和體力自然衰退。?
7. These habits are both universal among mankind and peculiar to individuals.?
這些習慣在全人類中很普遍，而對個人來說又很獨特。?
8. Both the twin brothers were born and bred in London.?
這對雙胞胎兄弟是在倫敦長大的。?
9. This is a ruler graduated in both inches and centimetres.?
這是壹把刻有英寸和厘米的尺子。?
10. Agency France Presse enjoys great popularity both at home and abroad.?
法新社在國內外都很有名氣。?
11. She and I both arrived at the same time by pure coincidence.?
我和她同時到達純屬巧合。?
12. With the blind leading the blind, both shall fall into the ditch.?
如果瞎子替瞎子帶路的話，那麽兩方肯定會掉到溝裏。?
13. Line the pages for the graph both horizontally and vertically.?
在這幾頁上同時畫上橫線和豎線，以便制作圖表。?
14. He scored out both calculations and did them again.?
他把兩個計算結果都劃掉，又把它們計算了壹遍。?
15. The proposal offered both sides a way out of the diplomatic impasse.?
這壹提議使雙方都能擺脫外交僵局。?
16. The uproar was enough to rouse both the quick and the dead.?
這喧囂聲足以驚醒生者和死者。?
17. There is much to be said for both sides of this question.?
這個問題正反兩方都能講出許多道理來。?
18. The process is essentially dynamic with ideas and feedback flowing both ways.?
這個過程本質上是動態的，有各種建議與反饋的雙向交流。?
19. Are you able to keep both the gardeners on?
妳還能繼續雇用這兩名花匠嗎？?
20. The moves contravene the peace plan agreed by both sides.?
這些舉措違反了雙方同意的和平方案。?
Both his eyes were severely burned.?
他的雙眼都嚴重燒傷了。?
代詞pron.?
兩者;兩個Why not buy both? 為什麽不把兩件都買下？ 副詞ad. 1.並；又；兩者皆 We like Amy and Phil both. 艾米和菲爾兩個我們都喜歡。 連接詞conj. 1.既。..且。..;...和。..都 The prospects bothexcited and worried me. 這前景即使我激動又令我憂慮。