i thinl there will be more tall builsings改为否定句

i thinl there will be more tall builsings改为否定句 I thing there will be more tall buildings.改为否定句 kate will go 改为否定句,I think there will be more people I think there will be less pollution.(改为否定句) I THINK THERE WILL BE MORE TALL BUILDING I think there will be more tall b( ). i think there will be more tall b_____in the cities there will be more people in our country（改为否定句） Perhaps there will be more pavement in our city改为否定句 There will be more robots in the future (改为否定句) There Will be more people in the future(改为否定句) 请问：There will be more trees in the future.如何改为双重否定句