what is this で in this sentence


In the examplatory phrases of my grammar, there is this sentence. 本当の研究発表のつもり
**で** 、みんなの前ではなしてください。

"Please talk in front of everybody as if it was a real presentation of your
new research."

I'd just like to know how this で in bold has to be classified. I'd say it is a
connector like in な adjectives, but since I don't know how to classify つもり, I
wanted to ask here.




The で you've marked is the case-marking particle (格助詞) で. As for つもり, it is a
noun.

> つもり **で** = **with** the "intention"
>
> 本当の研究発表のつもりで、みんなの前ではなしてください。= Please talk in front of everybody with the
> intention of the real research presentation.




The で you've marked is the case-marking particle (格助詞) で. As for つもり, it is a
noun.

> つもり **で** = **with** the "intention"
>
> 本当の研究発表のつもりで、みんなの前ではなしてください。= Please talk in front of everybody with the
> intention of the real research presentation.

