Конечно, давайте преобразуем данные предложения в отрицательную и вопросительную формы.
There will be a lot of people at the lecture today.
- Отрицательная форма: There will not (won't) be a lot of people at the lecture today.
- Вопросительная форма: Will there be a lot of people at the lecture today?
I'll be in tomorrow morning.
- Отрицательная форма: I will not (won't) be in tomorrow morning.
- Вопросительная форма: Will I be in tomorrow morning?
He'll be out tomorrow afternoon.
- Отрицательная форма: He will not (won't) be out tomorrow afternoon.
- Вопросительная форма: Will he be out tomorrow afternoon?
The talk will be very interesting.
- Отрицательная форма: The talk will not (won't) be very interesting.
- Вопросительная форма: Will the talk be very interesting?
I shall forget about it.
- Отрицательная форма: I shall not (shan't) forget about it.
- Вопросительная форма: Shall I forget about it?
He will remember us.
- Отрицательная форма: He will not (won't) remember us.
- Вопросительная форма: Will he remember us?
There will be a lot of work to do tomorrow.
- Отрицательная форма: There will not (won't) be a lot of work to do tomorrow.
- Вопросительная форма: Will there be a lot of work to do tomorrow?
I shall be able to go to classes soon.
- Отрицательная форма: I shall not (shan't) be able to go to classes soon.
- Вопросительная форма: Shall I be able to go to classes soon?
He will be able to go with us.
- Отрицательная форма: He will not (won't) be able to go with us.
- Вопросительная форма: Will he be able to go with us?
I'll have to stay at home this evening.
- Отрицательная форма: I will not (won't) have to stay at home this evening.
- Вопросительная форма: Will I have to stay at home this evening?
You'll have to hurry.
- Отрицательная форма: You will not (won't) have to hurry.
- Вопросительная форма: Will you have to hurry?
Каждое предложение в отрицательной форме добавляет "not" после вспомогательного глагола "will" или "shall", а в вопросительной форме вспомогательный глагол "will" или "shall" ставится в начало предложения перед подлежащим.