Английский язык present perfect continious

1 how long your grandparents having been

иди читай тексты, а не учи грамматику - люди нейросети, они паттерны запоминают

How long HAVE your grandparents been driving this car? (have, т.к. множественное число)

My sister hasn't been STUDYING hard enough (Отрицательное предложение: haven't/hasn't + been + Ving)

Have YOU BEEN sleeping the whole morning? (порядок слов в вопросе: have/has + подлежащее + been + Ving)

1. Have вместо has
2. Studying
3. Have you been

1. How long have your grandparents been driving this car?
2. My sister hasn't studied hard enough.
3. Have you been sleeping the whole morning?

Present Simple лучше ?