我wǒ没méi去qù，因yīn为wèi我wǒ病bìng了liǎo。

I did not go because I was ill.

因yīn为wèi下xià雨yǔ，我wǒ们men改gǎi变biàn了liǎo计jì划huà。

Because of the rain, we changed our plans.

因yīn为wèi下xià雨yǔ，比bǐ赛sài取qǔ消xiāo了liǎo。

Because of the rain, the match was cancelled.

因yīn为wèi太tài忙máng，我wǒ忘wàng了liǎo打dǎ电diàn话huà。

Because I was so busy, I forgot to ring.

她tā哭kū了liǎo，因yīn为wèi找zhǎo不bú到dào妈mā妈ma。

She cried because she could not find her mum.