Be + adjective and past participle ?

[lsujang]

1) I was pleasant and cooperative.
2) I was pleasant and cooperated.

I think that above two sentences are correct.
But SomeBody told me that second sentence is incorrect.

Why is second sentence incorrect? It's difficult for me.

Thanks to read my writing.

[Casiopea]

"and" joins two like forms. The adjective "pleasant" and the past tense verb "cooperated" are different:

Adjective: I was pleasant.
Verb: I cooperated.

Try,

EX: I was pleasant and I cooperated.

By leaving out "I" sentence 2) reads like this,

I was pleasant and I *was cooperated. (ungrammatical)

All the best,

[mykwyner]

What about this?

The boss asked me to work late. I was compliant and agreed. or this: I was bold and stood up to him. or: I was deceitful and lied about it. Sorry, Casi, I don't think that this is a case of non-parallel structure. I think that both of the original sentences are correct, albeit with slightly different meanings. Think about these extensions of those sentences:

Sentence 1. I was pleasant and cooperated. I had no choice.

Sentence 2. I was pleasant and cooperative, but this time I'd had enough.

[Casiopea]

I don't think that this is a case of non-parallel structure.

Yes, I understand, Mike, and even agree with you, but . . . acccording to Isujang, "SomeBody" else did think that.

But SomeBody told me that second sentence is incorrect.

All the best,