The goal is to study hard.

[Mohamed Mohsen]

The goal ( subject )
is to study hard. ( predicate )
to study ( infinitive clause )

we can permutate this sentence :

To study hard is the goal . ( no change in meaning )
To study functions as a subject here .

[Frank Antonson]

Yes, predicate nominatives act like that.

[Afit]

The goal is to study hard.

1. Is "is" considered a linking verb in this sentence?

2. Would "to study" be an infinitive in this sentence?

3. Is "to study" a predicate adjective? (Which it must be, I'd think, since "hard" is an adverb.)

Thanks,

Donna

1. Yes.
2. Yes.
3. No. Predicate nominative. And "to study hard" is.