I have ever traveled on a plane.(改为否定句）

I have ever traveled on a plane.(改为否定句） Have you ever traveled on a plane?(哪个词能替换句中的ever,为什么?） I have never traveled on a piane怎么改为一般疑问句并做否定回答 I have never traveled on a plane 后面应接什么副词 1.It looks nice.(改为否定句) 2.Can I have a toy plane？ I have a basball.改为否定句 I have a bike.(改为否定句) I have traveled in a big plane several times,but i have neve I have a good idea .(改为否定句） I have a new book.（改为否定句） I have a bat.（改为否定句） I have a bear (改为否定句）