These are her friends.怎么改为否定句

These are her friends.改为否定句 These are her friends.怎么改为否定句 These are my friends.改为否定句 These,are,her,brothers.(改为否定句)() They are good friends.改为否定句 These are your sisters.改为否定句 These are your brothers改为否定句 These are books.改为否定句 These are my books 改为否定句 These girls are nice改为否定句 These are apple .改为否定句 These are my gloves改为否定句