Like other varieties of High German and unlike literary German, Yiddish does not have the inflected past tense (preterite). Instead, the auxiliary verbs האָבן "hobn" 'to have' or זײַן "zayn" 'to be' are used with the past participle of the verb to construct the past tense. Most verbs take האָבן "hobn"; for example, the past tense of איך קויף ' 'I buy' is איך האָב געקויפֿט ' 'I bought'. About 30 intransitive verbs of motion or status and some of their derivatives take זײַן "zayn"; e.g., the past tense of איך קום "ikh kum" 'I come' is איך בין געקומען ' 'I came'. Transitive derivatives of these exceptional verbs usually take האָבן "hobn": e.g., זײַן "zayn" is used with the intransitive גײן "geyn" 'go', but האָבן "hobn" is used with the derived transitive separable verb איבערגײן ' 'go across'.