dedicases
-you dedicated
The word dedicases is the imperfect subjunctive form of dedicar in the second person singular. There are other translations for this conjugation.
See the full dedicar conjugation

dedicar

Toastie: Bueno, que sepas que te agradezco que dedicases este tiempo para la entrevista.
Toastie: Well, thank you so much for taking the time to do this interview.
Sería mejor que te dedicases a otra cosa.
Your mind would be better put to other pursuits.
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