我感觉这本书不太难。

Wǒ gǎnjué zhè běn shū bù tài nán.

I feel this book is not very difficult.

我感觉这件事没有你说的那么简单。

Wǒ gǎnjué zhè jiàn shì méiyǒu nǐ shuō de nàme jiǎndān.

I feel this matter is not as simple as you say.

你感觉怎么样？

Nǐ gǎnjué zěnmeyàng?

How do you feel?