2 sentences

1. 他自始至终都在支持我。

   tā zì​shǐ​zhì​zhōng dōu zài zhī​chí wǒ.

   He has supported me from beginning to end.

   Source: Dong Chinese Dictionary

2. 你自始至终都知道这是个武器。

   nǐ zì​shǐ​zhì​zhōng dōu zhī​dào zhè shì gè wǔ​qì.

   You knew this was a weapon all along.

   Source: OpenSubtitles