By surface analysis, in + checka.
inchecka (present incheckar, preterite incheckade, supine incheckat, imperative inchecka)
active | passive | |||
---|---|---|---|---|
infinitive | inchecka | incheckas | ||
supine | incheckat | incheckats | ||
imperative | inchecka | — | ||
imper. plural1 | inchecken | — | ||
present | past | present | past | |
indicative | incheckar | incheckade | incheckas | incheckades |
ind. plural1 | inchecka | incheckade | incheckas | incheckades |
subjunctive2 | inchecke | incheckade | incheckes | incheckades |
present participle | incheckande | |||
past participle | incheckad |
1 Archaic. 2 Dated. See the appendix on Swedish verbs.