たよ

did; was ...ing

→ いる
phrase Common #7,037
did; was ...ing A casual past-tense ending followed by よ, which adds emphasis or presents the information to the listener. In forms like 行ってたよ, it is a shortened form of 行っていたよ.
JA: 昨日、彼に会ったよ。
EN: I met him yesterday.

よくスキーに行ってたよ。

I used to go skiing a lot.

ラム酒だお前たちはここでよく飲んでたよな?

It’s rum. You guys used to drink here a lot, didn’t you?

— きっと、うまくいく (2009)

トムならそれができるって思ってたよ。

I knew Tom could do it.

俺が子供の時は、毎週日曜日には教会に行ってたよ。

When I was a kid, I used to go to church every Sunday.

あの人たちは先週来てたよ。

They were here last week.