Expressing "than" in comparisons (kuin)

Using "kuin" for "than"

Now that you know how to form comparative adjectives, you can make full comparisons using the word kuin (than).

The structure for a basic comparison is straightforward: state your subject, the verb on (is), your comparative adjective, kuin, and finally the thing you are comparing it to.

The airplane is faster than the bus.
Lentokone on nopeampi kuin bussi.
The new electric car is faster than the old tractor.
Uusi sähköauto on nopeampi kuin vanha traktori.

Comparing Vehicle Features

When comparing specific parts of a vehicle, you will often use the genitive suffix -n to express ownership, such as "the car's" (auton) or "the airplane's" (lentokoneen).

Let's look at some mechanical vocabulary to use in our comparisons:

engine
moottori
battery
akku

To compare these features, state the first vehicle in the genitive, the vehicle part, the comparative adjective, kuin, and finally the second vehicle in the genitive and its part.

The airplane's engine is bigger than the car's engine.
Lentokoneen moottori on isompi kuin auton moottori.
The tractor's engine is more powerful than the motorcycle's engine.
Traktorin moottori on tehokkaampi kuin moottoripyörän moottori.
The tractor's tire is wider than the car's tire.
Traktorin rengas on leveämpi kuin auton rengas.

Asking Comparative Questions

To ask if something is "more" than something else, start the sentence with Onko (Is...?). The rest of the comparison structure remains exactly the same.

Is the electric car more powerful than this car?
Onko sähköauto tehokkaampi kuin tämä auto?
Is the tractor noisier than the electric car?
Onko traktori meluisampi kuin sähköauto?

Once you are comfortable with this structure, you can combine these comparisons with other clauses using conjunctions like koska (because) to explain your preferences.

I like the electric car because it is quieter than the tractor.
Tykkään sähköautosta, koska se on hiljaisempi kuin traktori.

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