昨天我离开家时，忘记锁门了。 forget doing 忘记了已经做过的事情。

Yesterday when I left home, I forgot to lock the door.

youdao

昨天我离开家时，忘记锁门了。 forget doing 忘记了已经做过的事情。

Yesterday when I left home, I forgot to lock the door.

youdao