3 sentences

1. 他只对两件事有把握。

   tā zhǐ duì liǎng jiàn shì yǒu​bǎ​wò.

   He was sure of only two things.

   Source: CCMatrix

2. 别对你自己那么有把握。

   bié duì nǐ​zì​jǐ nà​me yǒu​bǎ​wò.

   Do not be so sure of yourself.

   Source: CCMatrix

3. 谢谢，但我不是很有把握。

   xiè​xie, dàn wǒ bù​shì hěn yǒu​bǎ​wò.

   Thanks but I am not so sure.

   Source: CCMatrix