be+形容词（主要是感情类动词）+动词不定式 这样句型中的不定式做什么成分？有的语法书说是宾语有的说是原

Question

example：I am happy to say.

Answer 1

主语+连系动词+形容词+动词不定式式
Subject +Link Verb + Adjective+ Verb Infinitive
（一） 形容词句式：Adjective Syntactic Construction
主体性状形容词：描述语法主语所对应现实中性状及属性
(EAC)Entity Attribute Construction

主语+（表示喜怒哀乐情绪.心理状态形容词）+to do
afraid, angry , ashamed, furious , content, happy, glad, indignant, sad , sorry , thankful, unhappy , amazed, annoyed, astonished astounded ; bored, delighted, depressed, disappointed ;discouraged, disgusted; distressed embarrassed enraged, excited; frightened, frustrated puzzled, relieved;
Satisfied, shocked ,stunned, surprised ; horrified , worried, terrified
(1):Mary is excited to be here
(表主语喜怒哀乐心理状态，语法主语做不定式逻辑主语）
(2)John was angry to hear the news
(表主语喜怒哀乐心理状态，语法主语做不定式逻辑主语）
(3)We are surprised to know that he failed
(表主语喜怒哀乐心理状态，语法主语做不定式逻辑主语）

please do remember :Only adverb can modify one adverb ,one adjective , adverb ,therefore, we can draw a conclusion that the Verbinfinitive that follows the adjectives should be regarded as an adverb , it is used as an adverbial

请一定记住，副词一般情况修饰 动词，形容词，副词，以及整个句子，动词不定式放在形容词后面，并修饰形容词，因此不定式具有副词功能，做状语，

Answer 2

关于这个问题语法家还没有一个合理的答案，有的说是形容词宾语，有的说是原因状语，但我认为考虑是什么成分价值不大，重要的是形容词之后动词一般要带to

Answer 3

是宾语

Answer 4

作原因状语本回答被提问者采纳