became tidy

0 Her bedroom became tidy after she had cleaned it. 0-

1blockquote

01cite10Vincent Teo12cite10Can I say,12br
12br
10Her bedroom became tidy after she cleaned it. 12br
12br
12blockquote

10I think the sentence is fine. There's no need to add 'had' before 'cleaned'. 0-

1i00Her bedroom became tidy after she cleaned it.02i02br
00A strange thing to say. I don't see how the bedroom could 01i00become02i00 tidy on its own just because she cleaned it. Cleaning and tidying are not the same thing. 02br
00Her bedroom was tidy after she cleaned it.02br
00 She cleaned and tidied her bedroom 0-

0 01blockquote

01cite10Vincent Teo12cite10Her bedroom became tidy after she cleaned it.12blockquote

10 No. 01i00after02i00 means later in time. So you are saying that first she cleaned her bedroom, and then the bedroom (all by itself) became tidy, that is, made itself tidy. Things can't "become tidy", but p