Explanation
Expresses an ongoing action or a state resulting from a past action.
Formation
Verb (て-form) + いる
Detailed explanation
The ている form is used to express either an ongoing action or a state resulting from a past action. It is formed by conjugating the verb into its て-form and then adding いる. In English, this can be translated as verb-ing or 'have verb-ed'. Its usage depends on the type of verb: action verbs or state verbs.
Examples
今、本を読んでいます。
Ima, hon wo yonde imasu.
I am reading a book now.
彼は英語を勉強しています。
Kare wa eigo wo benkyou shite imasu.
He is studying English.
ケーキが冷蔵庫に入っています。
Keeki ga reizouko ni haitte imasu.
The cake is in the refrigerator.
部屋がきれいになっています。
Heya ga kirei ni natte imasu.
The room has become clean.
Practice
Grammar content sourced from hanabira.org.