Be expected in this sentence?(Passive or Adjective

[harry1999]

Hi,

I am confused about following sentence:

1. This behavior was not expected from you.

Does the word play a role of adjective here?

If we replace "from" by "by", then does it indicate the same meaning?

I mean,

This behaviour was not expected by you.(I think, this is a passive voice sentence, isn't it?)
and its active coice will be,

I didn't expect such behaviour from you.

But, in passive voice we use "by someone", then what is the role of the word 'Expected" in the first sentence?

Does is act as an adjective or verb?

If it's a verb, then who is the agent and patient?

Please help me out!! I am still pondering over this sentence and that makes me confused!! :(

Thanks!!

[Raymott]

Hi,

I am confused about following sentence:

1. This behavior was not expected from you.

Does the word play a role of adjective here?
What word? There are no adjectives here.

If we replace "from" by "by", then does it indicate the same meaning?
No. It changes the meaning. As it stands, it's the speaker who did not expect the behaviour. If you change it to "by", it's the hearer who did not expect the behaviour.
1. This behavior was not expected by me from/of you.
I mean,

This behaviour was not expected by you.(I think, this is a passive voice sentence, isn't it?)
Yes, it's passive.
and its active coice will be,
I didn't expect such behaviour from you.
No, the active voice of "This behaviour was not expected by you." would be, "You didn't expect this behaviour".

But, in passive voice we use "by someone", then what is the role of the word 'Expected" in the first sentence?
"expected" is the past participle. "The behaviour was not expected."
Does is act as an adjective or verb?
The past participle is part of the verb.

If it's a verb, then who is the agent and patient?
In your original, "I" is the agent. 'I' was the one who didn't expect the behaviour. 'You" were the one I didn't expect the behaviour from.
Please help me out!! I am still pondering over this sentence and that makes me confused!! :(

Thanks!!

I'm not sure who is the patient. I haven't had much to do with patients of the grammatical sort.
I suppose that "I" could be the patient as well as the agent. 'I' was the one who expected (agent), and 'I' was the one whose expectations were changed (patient).