I wonder if it is grammatically correct to say 我是饿. If this sentence is grammatically correct, then what is the difference between 我很饿 and 我是饿? As far as I know, 是 should not be used with adjective predicates. But some sources suggest that using 是 in adjective predicate sentences is OK.
Also, how does 我饿 sound? Does omitting 很 in adjective predicate sentences make a difference to the meaning?
我是饿translates to "I am indeed hungry". "是" here is to emphasize. To better illustrate its similarity to using "do" to emphasize in English, here is another translation:
我饿(了)->"I feel hungry";
我是饿(了)->"I do feel hungry"
我很饿。
In an affirmative sentence the one-character adjectival predicate is usually preceded by 很, which is a weakened adverb here without much significance of an adverb of degree. The example in the book 现代汉语八百词， which says "单音形容词前常加'很'，凑成双音节", is "这间房子很大" (see below what the book says about the same sentence without '很').
我饿。
Without 很, comparison or contrast is often implied. 现代汉语八百词 says "'这间房子大'含对比意味，暗指'另一间房子小'".
我饿了。
The final structural particle '了' indicates a change, in this case indicates "I'm hungry now (I was not hungry before)".
我是饿。
As correctly said, 是 here is for emphasis (I would say it with an angry tone, for example).
In English, 我是饿 is "I am a hunger", the proper sentence is "I am hungry" (我饿了). Note the difference between I am + none and I am + adjective.
我很饿 = I am very hungry. 我饿 is acceptable, but it is usually a whining from a young kid or a beggar. 饿了 is better (sounds a little commending or complaining), again, the proper way to say is "我饿了".
Chinese usually does not need a linking verb when expressing a state, like 水开了 instead of 水是开
了 means water got heated to the boiling point, instead of a past tense
“我很饿” I'm very hungry,you saying this for asking someone to provide you with food or notify the others about you conditions of being hungry.
“我是饿” Indeed I'm hungry, you saying this to verify your conditions of being hungry yet would refues others help. It pretty much sounds like "yeah, I'm hungry but no thanks". Of course you may saying this for self introduction,means your name is hungry.
