今后我想多花时间陪家人。

Jīnhòu wǒ xiǎng duō huā shíjiān péi jiārén.

From now on, I want to spend more time with my family.

今后我会注意饮食，少吃甜的东西。

Jīnhòu wǒ huì zhùyì yǐnshí, shǎo chī tián de dōngxi.

From now on, I will pay attention to my diet and eat less sweet food.

今后请大家按时交作业。

Jīnhòu qǐng dàjiā ànshí jiāo zuòyè.

From now on, please hand in your homework on time.