Tomorrow the whole day

[Brahman]

Dear teachers,

I have two questions concerning the following pair of sentences:

Question 1: Between the following two sentences, I feel, the first is grammatical and natural. But I cannot say why. Could someone parse the sentences and explain to me why sentence 1 is correct?

1. I shall be free tomorrow the whole day.

2. I shall be free the whole day tomorrow.

Question 2: Would it be wrong if I use simple present instead of future tense:

3. I am free tomorrow.

[Alan]

Re. 1: the issue is not correct vs incorrect but natural vs. unnatural word order. The second is more natural.

Re 2: No, it would be very natural.