Questions & Answers about Tarvitsetteko saippuoita tai esitteitä?
Why are the objects in the partitive plural here?
The verb tarvita (to need) takes a partitive object when you are talking about an indefinite amount (meaning "some" soaps or brochures). Because we are asking about an unknown number of multiple items, we use the partitive plural.
How do we get the form saippuoita from the basic word saippua?
For many words ending in -a, the final -a changes to an -o- before adding the partitive plural ending -ita. So, the base saippua drops the -a for an -o- to become the stem saippuo-, and adding the ending gives us saippuoita.
What happens to esite (brochure) to make it esitteitä?
Words ending in -e have a stem ending in a double -ee-, and they take the strong consonant grade. So the weak -t- in esite becomes a strong -tt- in the stem (esittee-). When you add the plural -i-, the double -ee- shortens to -ei-, and finally we add -tä to get esitteitä.
Let's look at the verb Tarvitsetteko. How is it built?