Next is function. In terms of function, verbs can function as predicate but adjective cannot. When we express the situation that someone enjoys something, we can make the expression like ‘students enjoy’. However, when we express someone’s state of mind which is happy, we can express not ‘Students happy’, but ‘Students are happy’. Adjectives need ‘be’ verb or other verb in order
Certain forms of AdjP occur right at the beginning of the NP, before the indefinite article a.
a. [How big a box] do we need?
b. We'd select [this big a box].
a. It seemed [such a computer].
b. [What a handsome] I was.
- virtual disaster *his almost death
- It virtually evaporated. He almost died.
- It was virtually impossible. He was