他上课老是说话。

Tā shàngkè lǎoshì shuōhuà.

He always talks in class.

他老是忘记带钥匙。

Tā lǎoshi wàngjì dài yàoshi.

He always forgets to bring his keys.

你老是迟到，老师会生气的。

Nǐ lǎoshì chídào, lǎoshī huì shēngqì de.

You are always late; the teacher will get angry.