Is usually tired, usually tired, and feels tired?

Solution 1:

All are grammatical, and whilst the first and the last mean almost exactly the same thing, the middle one has a rather different meaning.

Between the first and the last there is little to choose. In the first one is describing her state of tiredness, the last describes her feelings i.e of tiredness.

The middle case - she usually tired after...school - means, not that she necessarily comes home feeling tired, but at that point she would 'tire' (i.e become tired). In this instance one is using the past tense of the verb tire, whilst the other examples use the past participle.

As @Edwin Ashworth points out in a comment below - it helps if "tired" in this last instance is qualified by an adverb e.g. she usually tired early - though in my view the participle can work adequately on its own.