She took an hour to clean her room.

[Alice Chu]

Please tell me if my understanding is correct.
1) She took an hour to clean her room.
= It took her an hour to clean her room.→more commonly used
→ She finished cleaning her room.

2) She spent an hour cleaning her room, but it was still in a mess.
→ She didn’t finish cleaning her room.

 

[GoesStation]

Please tell me if my understanding is correct.
1) She took an hour to clean her room.
= It took her an hour to clean her room.→[STRIKE]more commonly used[/STRIKE]
→ She finished cleaning her room.

2) She spent an hour cleaning her room, but it was still in a mess.
→ She didn’t finish cleaning her room.

Correct except for the part I struck out.

Please don't use symbols in place of words in your posts. We're here to use English. Also, I don't understand what the arrows are supposed to mean.

 

[Alice Chu]

I mean “It took…” is more commonly used than “She took…”
Am I right?

 

[tedmc]

I mean “It took…” is more commonly used than “She took…”
Am I right?

I don't think so. They are just different ways of stating the same thing. What makes you think that one is more common than the other?

 

[emsr2d2]

"It took her three hours to clean her room" is certainly more common than "She took three hours to clean her room" in BrE.

 

[jutfrank]

I mean “It took…” is more commonly used than “She took…”
Am I right?

I don't think this is really the right question because each sentence has a different focus and therefore a different use. To put it very simply: starting with It puts focus on the duration whereas starting with She puts focus on her. For that reason, I don't think you should really ask which is more common.