 Amharic verbs often have additional morphology that indicates the person, number, and (second- and third-person singular) gender of the object of the verb.While morphemes such as "-at" in this example are sometimes described as signaling object agreement, analogous to subject agreement, they are more often thought of as object pronoun suffixes because, unlike the markers of subject agreement, they do not vary significantly with the tense/aspect/mood of the verb.For arguments of the verb other than the subject or the object, there are two separate sets of related suffixes, one with a benefactive meaning ("to", "for"), the other with an adversative or locative meaning ("against", "to the detriment of", "on", "at").