learn sth by oneself in don t when by can be omitted.

by oneself : This is often used as an adverbial sentence in a sentence, and it is still smooth to omit it.

It emphasizes the way, i.e., alone, alone.

oneself: as a homonyus, object, predicate in a sentence, etc. It can only be omitted when it is used as a homonym.

Such as the boy came to the shop himself. Himself in is a homonymous.

he isn't quite himself 。He wasn't in good shape today. Himself cannot be omitted.

he enjoyed himself at the party。At the party, he had a great time. The object cannot be omitted.

The above is an example sentence.

By oneself is an adverbial in this, and you can also omit it directly. The remaining oneself is the homonym of the subject.

Synonymous phrases.

Copy as: study on one's ownindependently

oneself

self-taught;self-learning, the first 3 are all verb phrases, similar usage, 4 are uncountable nouns, which can be used as a definite for some other nouns, such as self-study courses; self-study classes and so on.

studied these subjects on his own / independently.He taught himself these lessons.

he teached himself these subjects.

i teach myself I self-study (I self-guide) i learn by myself I self-study (I self-study) i study by myself I self-study (I self-study).

by oneself, by someone's own, fixed matching.

my sister ( learned ) japanese ( by ) herself ) when she was 15

i learn english by myselfmy brother learns football by himself.

I wish you progress in your studies! o( Missing)o! then chain. Hope.

learn english by oneself

English is generally spoken first, and secondary supplements are followed later! That's how I feel.

The latter, which means learning English alone (independently).