ثُئِرْتُ • (ṯuʔirtu) (form I)
ثُئِرْتَ • (ṯuʔirta) (form I)
ثُئِرْتِ • (ṯuʔirti) (form I)
ثُئِرَتْ • (ṯuʔirat) (form I)