21. In Mandarin the auxiliary verbs have six properties that distinguish them from main verbs: 22. Auxiliary verbs license negation, raising-to-subject verbs do so only reluctantly:23. Many of these verbs are now used as auxiliary verbs . 24. Both use a combination of auxiliary verbs and verb endings. 25. Auxiliary verbs precede main verbs, prepositions precede their objects, and nouns precede their relative clauses.26. Negation is expressed with an auxiliary verb , which is inflected for person, number and tense. 27. A third diagnostic that can be used for identifying auxiliary verbs is verb phrase ellipsis. 28. Auxiliary verbs are also used to modify the verb.29. The auxiliary verb " biti " is pronounced differently in Kajkavian but similarly to Slovene. 30. It is also used to form the passive voice with a variety of auxiliary verbs .
