Yes you can

During the 2008 US presidential campaign following the New Hampshire Democratic Primary, then-Senator (now President) Barack Obama, used the similar English translation of the slogan of United Farm Workers (UFW) – "Sí, se puede" (Spanish for "Yes, it can be done") in his speech.
The slogan dates back to 1972 when Cesar Chavez and the UFW's co-founder, Dolores Huerta, came up with the slogan during Chavez's 24-day fast in Phoenix, Arizona.Helene is now campaigning for a seat in her School Council and on the photo she works out a poster for this.
Helene, maybe you can ask your mother to make a video with Bob the Builder theme making the promotion even better.
Yes you can!!