しります・わかります

“しります” and “わかります” have similar meaning. How are they different?

しります

このひとを しっていますか
( Do you know this person? )
meaning : As a result of getting the information, you know about something.

かのじょが けっこん することを しっていますか
( Do you know she is getting married? )
すずきさんの メールアドレスを しっています
( I know Ms.Suzuki’s mail address. )

The negative form is “しりません”. Please be careful that “しっていません” is not proper.

わたしは このひとを しりません
( I don’t know this person. )

しります” is “transitive verb”, so it needs an “object” with a particle ““.

わたしは 10ねんまえから、たなかさん しっています
( I know Mr.Tanaka for 10 years. )

わかります

これが だれか わかりますか
( Do you know who this is? )
meaning : You know or realize something through learning or your experience. You understand a fact, an idea, a situation, or a meaning.

わたしは かんじが わかります
( I understand Kanji. )

The negative expression is “わかりません”.

この ことばの いみが わかりません
( I don’t know a meaning of this word. )

“わかります” is “intransitive verb”, and an “object” is marked by a particle ““.

かれの きもち わかりません
( I don’t know his feeling. )