Breakdown of Meidän ei tarvitse tiskata tänään.
me
we
ei
no / not (en, et, ei, emme, ette, eivät)
tänään
today
tarvita
to need
Questions & Answers about Meidän ei tarvitse tiskata tänään.
Why is the sentence starting with Meidän (our) instead of Me (we)?
In Finnish, sentences expressing necessity or a lack of necessity require a genitive subject. Instead of using the basic subject form me, you must use the genitive (ownership) form meidän. Literally, it is like saying 'It is not of our necessity to wash dishes.'
Why is the negative verb ei instead of emme? Doesn't 'we' require emme?
Normally, yes! But in these 'necessity' structures, the verb is always frozen in the third-person singular (the 'he/she/it' form), no matter who the subject is. Because the subject is forced into the genitive (meidän), the negative verb stays as ei.
What form is tarvitse in this sentence?
It is the connegative form of the verb tarvita (to need). When you use a negative word like ei, the main verb drops its personal ending. Normally 'it needs' is tarvitsee, so dropping the ending gives us tarvitse.
Why is tiskata in its basic dictionary form?
The verb tarvita (to need) is always followed by the first infinitive (the basic dictionary form) of the action verb. Here, tiskata (to wash dishes) simply follows ei tarvitse without taking any personal endings.