they both have sth用单数还是复数

either both 后面用单数还是复数? have any problem doing sth中problem用单数还是复数 Both English and Chinese languages 后面用单数还是复数 both of these counts 谓语动词用单数还是复数 both和all的谓语动词用单数还是复数 they both have 还是they are both have；提问时,是用be动词还是do have是单数还是复数? both ..and...后面的动词用复数还是单数?niether ...nor后面的动词用复数还是单数? 是they both have 还是they are both have doing sth or doing sth 作主语 谓语动词用单数还是复数 sth and sth后面的动词是用单数还是复数 It's time for sth.中的sth.用单数还是复数?