いてくれたら

if you were here

→ 居る
phrase Uncommon #8,428
if you were here A conditional form of いる with くれる, often expressing a wish that someone be present or stay with the speaker. Depending on context, it can also mean “if you would stay with me.”
JA: 君がいてくれたら、もっと安心できるのに。
EN: If you were here, I would feel much more at ease.

もし君がここにいてくれたらそのことを相談できるのに

If only you were here, I could talk to you about it.

もしあの時彼が私と一緒にいてくれたら私はあんなことしなかったのだが

If only he had been with me then, I wouldn’t have done such a thing.

パパがいてくれたら

If only Dad were here…

— ほんとうのピノッキオ (2019)

みんな君がいてくれたらって思ってる

Everyone wishes you were here.