1. You look still the same.
2. You look the same way.
3. I feel this way.
4. I feel the same way.
Q1) Grammatically, can a noun phrase be used like an adjective like in sentences 1,2,3,4 above?
Q2) As for sentences 1,2,3,4, are "the same", "the same way", "this way", "the same way" all used as adjectives that describes "You" and "I"?
I would say yes to both questions Q1 and Q2.
But I'm not really sure about my analysis.
The subject complement for many verbs can be a noun, a noun equivalent, or an adjective. "Feel" can be a linking verb (copula), which is intransitive, or a transitive verb. com/dictionary/american/feel_1 I feel very cold.
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The subject complement for many verbs can be a noun, a noun equivalent, or an adjective. "Feel" can be a linking verb (copula), which is intransitive, or a transitive verb.
https://www.macmillandictionary.com/dictionary/american/feel_1
I feel very cold. (adjective)
I fe