[問英文]請問哩句英文點寫

If you conduct an investigation, I guarantee that you must have fruitful results.

I'll guarantee that you may have great results if you done an investigation.

English translation
只要- If
你地- you (plural)
去調查- go about to investigate (something)
我- I
保証- assure
你地-you (plural)
一定- certainly
有收獲- get some result

只要你地去調查,我保証你地一定有收獲
If you go about to investigate this, I assure you that you will certainly get some result.