是find difficult doing还是find difficult to do帮帮忙把

句子是How you doin'? 是I find learning English difficult.还是I find learning English is difficult.为什么? 是find difficult doing还是find difficult to do帮帮忙把 I find learning English difficult.这里的difficult是形容词做宾补还是定语 I find（）difficult to find a job是填it还是that 为什么 I find learning English difficult.是形容词作宾补还是不定式做宾补I find learning English difficult.看起来好像是形容词difficult做宾补,可这句话应该可以写成I find learning English to be difficult.这不又是不定式 find it difficult to do, Difficult to find the police It's just I find science really difficult.这里difficult是名词作宾补吗?若不是,是其他什么成分呢? I find it difficult to learn English这句中为什么不是it is difficult 为什么省略了is如果是I find it is difficult to learn English对吗,是不是这种形式符合所有 还是只有find可以 spend的用法 是TO DO STH 还是DOIN STH listen to sb. doing sth看到一句 She liked listenin' 2 her father readin' stories at bedtime有listen sb. doin' sth.这种用法吗?有什么其他类似的比如watch sb. doin' sth.find sb. doin' sth? At that time people would starve if food was difficult to find tofind是啥 I find it difficult to answer this qustion 哪个是主语 find it difficult to make friend 翻译 Find someone to marry so difficult? 发现某事很难是find it difficult to do 还是find it is difficult to do?我做题的时候真题解释是find it difficult to do,但difficult不是形容词吗,怎么前面不用加be动词的? I found it is very difficult to understand what the foreigner said.（×）为什么不能是“found it is very difficult to...”,不是find可接从句吗?