sairastuit

Sairastuit is the second-person singular past tense form of the Finnish verb sairastua, meaning "you fell ill" or "you became ill." It is used to describe that the person being addressed experienced illness at a point in the past.

Grammatically, sairastuit is part of the standard conjugation of sairastua. Other forms in the same tense include sairastuin (I fell ill), sairastui (he/she fell ill), sairastuitte (you plural), and sairastuivat (they fell ill). The form is typically used with a time reference such as viime viikolla or eilen, and can be followed by the illness or the cause, for example sairastui flunssaan or sairastui influenssaan.

Usage notes include its common appearance in everyday conversation, media, and narratives when recounting past health events. The verb conveys a temporary health event rather than a chronic condition, and it is often contrasted with non-ill outcomes or with continued health in past contexts. Negation is formed with ei; for example, et sairastunut is used to say “you did not fall ill” in past contexts when appropriate.

Related terms include sairastua (the infinitive) and sairastuminen (the onset or act of becoming ill). Sairaus is a general noun for “illness,” while sairastuminen refers more specifically to the process of falling ill.