()()てる

もりたてる
verb (ichidan)
to liven up, to build up, to support
他動詞 transitiveaction
Conjugation
AffirmativeNegative
Present()()てる()()てない
Present polite()()てます()()てません
Past()()てた()()てなかった
Past polite()()てました()()てませんでした
て form()()てて()()てなくて
ている present()()てている()()てていない
ている polite()()てています()()てていません
ている past()()てていた()()てていなかった
ている past polite()()てていました()()てていませんでした
Conditional ば()()てれば()()てなければ
Conditional たら()()てたら()()てなかったら
Volitional()()てよう
Volitional polite()()てましょう
Potential()()てられる()()てられない
Passive()()てられる()()てられない
Causative()()てさせる()()てさせない
Imperative()()てろ()()てるな
1. to liven up, to enliven, to boost
To make something more exciting, energetic, or successful through active effort.
みんな()()()てた。
Everyone worked together to liven up the atmosphere.
We played music to liven up the event.
I went to cheer in order to support the local team.
2. to support, to back up, to build up
To help someone grow or succeed by providing encouragement and support.
新人(しんじん)()()てる。
To support and build up a newcomer.
先輩(せんぱい)たち(わか)選手(せんしゅ)()()てた。
The senior members supported and built up the young players.
(まわ)(ひと)たち(かれ)()()てて、社長(しゃちょう)まで(そだ)()げた。
The people around him supported and built him up until he became president.

()()てる means to actively boost, enliven, or support something or someone through effort.

Transitivity

ASPECT (ている):
()()てている indicates an ongoing effort to support or enliven something.

Common patterns

Usage

Sense 1 (liven up) focuses on making events or atmospheres more exciting. Sense 2 (support/build up) focuses on helping people grow. Both convey active, collaborative effort rather than passive support.