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I'm a little confused as to who the sentence is referring to as the
satisfied/dissatisfied person.

for example: 彼はもう彼女満足できない。

I understand this sentence to mean: He cant be satisfied by/with her anymore.

I know I can flip 彼 and 彼女 to mean that the girl is the one unsatisfied with
him. But this would make her the subject.

How would I structure a sentence in Japanese that would still keep him as the
subject?

for example: He cant satisfy her anymore.(it's what I originally thought the
example meant)

Also, is there a rule I should follow in the future to understand it
correctly?
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2021-08-23T05:47:39.140
89010
2021-08-23T06:20:05.463
46956
question
usage syntax subjects object
Understanding the subject and object when using 満足/満足できない
To say "He can't be satisfied by/with her anymore", you use the particle に, as
in:

> 「彼はもう彼女 **に** 満足できない。」

To say "He can't satisfy her anymore", you'd say:

> 「彼はもう彼女 **を** 満足 **させ** られない。」

using the causative form ～させる. (られる is the potential auxiliary.)

Basic structures are:

「AがBに満足する」 -- "A is satisfied with B"  
「AがBを満足させる」 -- "A satisfies B"
CC BY-SA 4.0
2021-08-23T06:20:05.463
89011
2021-08-23T06:20:05.463
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89010
answer