take upon oneself

transitive

(transitive) To assume personal responsibility for.

Japanese Meaning

自ら責任を担う、引き受ける

It's unwise to take upon oneself more than one can handle.

自分の手に負えないことを引き受けるのは賢明ではない。

Sense（1）

(transitive) To assume personal responsibility for.

That's an awful lot of work to take upon yourself.

takes upon oneself

（ present singular third-person ）

taking upon oneself

（ participle present ）

took upon oneself

（ past ）

taken upon oneself

（ participle past ）