In non-polypersonal languages, the verb either shows no agreement at all or agrees with the primary argument (in English, the subject). In a language with polypersonal agreement, the verb has agreement morphemes that may indicate (as applicable) the subject, the direct object, the indirect or secondary object, the beneficiary of the verb action, etc. This polypersonal marking may be compulsory or optional (the latter meaning that some agreement morphemes can be elided if the full argument is expressed).