See ↑ EXPERIENCE 3, ↑ KNOW/NOT KNOW 1,2,11,22, ↑ RECOGNIZE 1, ↑ SPEAK 3, ↑ SURE/NOT SURE 1
◆◆◆
• ↑ as far as I know
• ↑ be in the know
• ↑ before you know it
• ↑ don't ask me/how should I know?
• ↑ get to know
• ↑ I don't know what to say
• ↑ let sb know
• ↑ little did I/she/he etc know
• ↑ not know
• ↑ not know anything/know nothing
• ↑ not know how to do sth
• ↑ not know where you are
• ↑ not want to know
• ↑ want to know
• ↑ you never know