eager后面加to do不是加doing，be eager to do為固定詞組，中文意思是“渴望做某事”。eager詞性是形容詞，但是在翻譯中文習慣中，可以把它翻譯成動詞。

eager to do造句

1、Some Frenchmen are eager to do that..

2、Be specially eager to do or achieve sth

3、Those who are eager to do so must not share their troubles.

4、Mr Singh, born before partition in territory that is now Pakistan, is personally eager to do so (though others in his government, and hawkish opposition parties, disagree).

5、They were eager to do the things first-time tourists do - sail past the Statue of Liberty, stand atop the Empire State Building and stroll through the Metropolitan Museum of Art.

6、Who gave himself for us to redeem us from all wickedness and to purify for himself a people that are his very own, eager to do what is good.

eager的用法與搭配

eager的用法與搭配：eager的意思是“熱切的”“渴望的”，指對成功的期望或進取的熱情，含有熱切得難以等待或難以抑制的意味。eager在句中可用作定語或表語。eager的比較級、最高級有eagerer，eagerest和more eager，most eager兩種形式。

1、be eager也可以接動詞不定式，表示“渴望做什么”，也可接由介詞for所引出的邏輯主語。be too eager to-v的意義不是否定的，而是肯定的。

2、be eager常與介詞for，about，after連用，而不與of連用，也可跟that引導的從句，屬于較正式的用法。從句中的謂語動詞一般為虛擬式。be eager也可以接動詞不定式，表示“渴望做什么”，也可接由介詞for所引出的邏輯主語。be too eager to-v的'意義不是否定的，而是肯定的。

3、eager表示渴望得到某物，后接介詞for，after，about等。如：We are all eager for[after]knowledge.我們都求知心切。表示渴望做某事，后接不定式。如：He is eager to go abroad.他渴望出國。有時可后接that從句，此時從句謂語一般都用'should+動詞原形”這樣的虛擬語氣。