They want ( ) (clean) the room now.里面既有want 又有now 动词应该是原形还是i

want to do sth.想要做某事
有些表感觉,感情,情绪,精神活动,所属关系等的动词,一般不用于进行时态.常见的这类动词有：understand,remember,wonder,hate,like,love,want,know,hope,wish,agree,believe,think(认为) 等 .
e.g.表示“我现在喜欢踢足球”：
I am liking playing football now.(错误）
I like playing football now.（正确）