3 sentences

1. 没必要说悄悄话。

   méi bì​yào shuō qiāo​qiāo​huà.

   There's no need to whisper.

   Source: OpenSubtitles

2. 我看见比赛前你给马说了悄悄话。

   wǒ kàn jiàn bǐ​sài qián nǐ gěi mǎ shuō le qiāo​qiāo​huà.

   I saw you whispering to the horse before the race.

   Source: AI Challenger 2017

3. 我看见你对着他的耳朵说了句悄悄话。

   wǒ kàn jiàn nǐ duì​zhe tā de ěr​duo shuō le jù qiāo​qiāo​huà.

   I saw you whisper something into his ear.

   Source: OpenSubtitles