～つもりで

About

The 「Ｙつもりで、Ｘ」 pattern can be used to say that "X was done with Y intent". つもりで can attach to nouns and な-adjectives using の, or directly to casual form verbs.

E.g. たくさん飲のむつもりで来きたが、お酒さけが見当みあたらない！ "I came here with the intent to drink a lot, but I can't find any booze!"

つもりで can also be used to create "as if" statements. These can be used when someone is pretending to be someone/something else, or when they are acting "as if they are X".

E.g. 母ははになったつもりで電話でんわに出でた。 "I picked up the phone, pretending to be mom."

E.g. シェフのつもりでチーズおろしている。 "They're grating cheese as if they're a chef."

Summary

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  「Yつもりで、X」 can be used to say that "X was done with Y intent"

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  ～つもりで can also be used to create "As if X is in Y way", or "To pretend to be X" statements