sentence that I can not understand.

[Kubol]

Hi. I was watching the interview for improve my English (and for hobby by the way), and in whole interview there was one sentence that I can not understand and I am very insterested what it is.

https://www.youtube.com/watch?v=ZqEaayeP3ZA

Can someone tell me what this man told at 8:02? can't to decode it. It seems to me like it was something like: ''I dear teen you'' but there's not. Can somebody write it out for me? Thank you in advance!

 

[GoesStation]

​I gaurantee you

Note my little correction above.

 

[GoesStation]

Note mine - guarantee. ;-)

Drat, foiled by spell-check again. It doesn't work on words with embedded formatting.

 

[Kubol]

ohh, that's so easy sentence, so similiar to my native language, and I could not decode this.(polish-gwarantuje) Thank you very much, you are my gods!