r-uny purvtratartryR-ùùny Màríì pùùrr g-ú'ld gìtáàrryMary tries to play the guitarB-èèny Juáàny pùrr ny-ú’ld(=bí).Juan tried to sing.If the verb 'try' is in the completive, its complement is in the negative aspect. If 'try' is in another aspect, its complement is in the potential.