she has forgotten how she can open the window这句话对吗?谓语动词是什么时态

she has forgotten how she can open the window这句话对吗?谓语动词是什么时态 she has forggeten how she can open the window.改为简单句. open the window and close the door 这句话对吗? she has written the letter这句话对吗? She has to ciose the window改成否定句是什么 she has a fever ,please______(not open)the window用正确形式填空. She has never bought some food .这句话什么时态? she the window open now (用现在进行) she has to practice her guitar .这句话对吗 “She has come here an hour ago”这句话对吗? She can swim like a fish 这句话对吗 情态动词有时态么she needs obey the school rules.这句话对么.need可以加s吗