As far as I know против Last i heard

Когда что использовать в английском, со значением, регистром и примерами.

As far as I know

НеформальноеСвыше 10 000 (реже)

Last i heard

Топ 2000 (частое)
Самое формальное: Last i heardСамое частое: Last i heard
 As far as I knowLast i heard
Произношение🇬🇧 //əz fɑːr æz aɪ nəʊ//🇺🇸 //əz fɑːr æz aɪ noʊ//🇬🇧 //lɑːst aɪ hɜːd//🇺🇸 //læst aɪ hɜrd//
ЗначениеWhat I understand to be true based on my knowledge.The most recent information I got.
ПримерAs far as I know, the meeting is still scheduled for tomorrow.Last I heard, she was working at the new cafe downtown.
РегистрНеформальноеНейтральное
Насколько частоеСвыше 10 000 (реже)Топ 2000 (частое)
Сочетанияas far as I know, as far as I can tell, as far as I rememberlast I heard about, last I heard from, last I heard of
Частые ошибкиUsing it in formal writing contexts where precise language is preferred., Confusing it with 'as much as I know', which is less common., Not using a comma before it if it starts a sentence.Using 'last I heard' with non-past contexts., 'Last I've heard' is often incorrectly used instead of the correct past form., Omitting to specify the subject when necessary.
Заметки по употреблению'As far as I know' is casual and often used in conversation to express uncertainty or limitations in knowledge. It's not usually appropriate for formal writing.Used to refer to the latest information someone has. It can be informal when used in conversation. Avoid using in formal writing.

Посмотри в реальных клипах

As far as I know
Last i heard

Частые вопросы: As far as I know против Last i heard

В чём разница между As far as I know и Last i heard?

As far as I know: What I understand to be true based on my knowledge. Last i heard: The most recent information I got.

Что формальнее: As far as I know и Last i heard?

Среди них Last i heard самое формальное.

Что чаще встречается: As far as I know и Last i heard?

Среди них Last i heard самое частое в повседневном английском.

Можно показать пример каждого?

As far as I know: As far as I know, the meeting is still scheduled for tomorrow. Last i heard: Last I heard, she was working at the new cafe downtown.

Можно ли использовать As far as I know и Last i heard взаимозаменяемо?

Не всегда. As far as I know и Last i heard близки и иногда пересекаются, но различаются по регистру, частоте и употреблению, поэтому замена одного другим может изменить смысл или тон. Стоит свериться с различиями выше, прежде чем заменять.