In Yem language, adding "o+?" at the end of an affirmative verb turns it into a question. However, "se" is used to indicate feminine gender and "so" used to indicate masculine gender at the end of the verb form. (Yem)

If the subject is "I" verb form ends with "o ". (Did I teach? -Ta assino?/ Did I watch?-Ta biino?). (Yem)

If the subject is "We" verb form ends with " yo ". (Did we teach?- Inno assiniyo?/Did we watch? -Inno biiniyo?). (Yem)

If the subject is "You(m)" verb form ends with "o". (Did you(m) teach?- Ne assito(so)?/Did you(m) watch?- Ne biito(so)?) Note: Respective Form. (Did you(m) teach?- Nii assiniyo?/Did you(m) watch?- Nii kemeniyo)?) (Yem)

If the subject is "You(f)" verb form ends with "o". (Did you(f) teach?- Ne assito(se)?/Did you(f) watch?- Ne biito(se)?) Note: Respective Form. (Did you(f) teach?- Nii assiniyo?/Did you(f) watch?- Nii kemeniyo)?) (Yem)

If the subject is "She" verb form ends with "o". (Did she teach?- Bar assiyo?/Did she watch?- Bar biyo?). Note: Respective Form. (Did she teach?- Baas assiteyo?/Did she watch?- Baas kemeteyo?). (Yem)

If the subject is "You(pl)" verb form ends with "o". (Did You(pl) teach?- Nitto assisetiyo?/Did You(pl) watch?- Nitto biyesetiyo?). Note: Respective Form. (Did You(pl) teach?- Niino assiseniyo?/Did You(pl) watch?- Niino kemeseniyo?). (Yem)

If the subject is "He" verb form ends with "o". (Did he teach? - Bar assiyo?/ Did he watch? -Bar biyo?) Note: Respective Form. (Did he teach? - Baas assiteyo?/ Did he watch? -Baas kemeteyo?) (Yem)

If the subject is "They" verb form ends with "o" Note: They ( Masculine Gender) (Did they teach?- Baasso assiseteyo?/Did they watch?- Baasso kemeseteyo ?) Note: They ( Feminine Gender) (Did they teach?- Baasso assiseteyo?/Did they watch?- Baasso kemeseteyo ?) Note: Respective Form. (Did they teach?- Baasso assiseteyo?/Did they watch?- Baasso kemeseteyo ?) (Yem)