pitää suu kiinni

== Finnish == === Verb === pitää suu kiinni (somewhat rude) to keep one's mouth shut, to remain silent ==== Conjugation ==== See pitää. suu is normally in the accusative case (which appears as either the nominative or genitive case depending on the context), but is inflected in the partitive case to express an ongoing or incomplete action or if used in the negative. It also takes a possessive suffix: