3 sentences

1. 他说他正在考虑诉讼。

   tā shuō tā zhèng​zài kǎo​lǜ sù​sòng.

   He said he is considering a lawsuit.

   Source: CCMatrix

2. 他对学校提起了诉讼。

   tā duì xué​xiào tí qǐ le sù​sòng.

   He filed suit against the school.

   Source: CCMatrix

3. 他们以诉讼来威胁他。

   tā​men yǐ sù​sòng lái wēi​xié tā.

   They threatened him with a lawsuit.

   Source: CCMatrix