All non-present tenses in the indicative are marked by a suffix directly preceding the person marking. The present subjunctive is marked with a suffix following the person marking. Examples of tense markers include the simple past suffix "-rqa", past imperfect "-yka", and past perfect "-sqa". Tense suffixes can change form depending on person and can alter person marking in some cases: for instance, in the past imperfect tense, both the third person singular and plural subject markers (typically "-n", "-nchiq", or "-nku" depending on object) become "-q", meaning that a verb in the past imperfect with a third person subject would end in "-yka-q".