Verb Type 6: -eta/-etä Verbs (vanheta, paeta) | Finnish Grammar

Type 6 is the rarest and most specialized of the six verb classes. Its dictionary form ends in -eta/-etä, and the great majority of its members are inchoatives — verbs that mean "to become / grow more X," built from adjectives: vanha (old) → vanheta (to grow old), lämmin (warm) → lämmetä (to warm up), pitkä (long) → pidetä (to grow longer). This semantic coherence is a gift: if a verb means "to get X-er," it is almost certainly Type 6. The outlier to remember is paeta (to flee), which is not an inchoative but conjugates the same way — and famously grows a k out of nowhere.

Building the stem: -eta/-etä → -ene-

Drop the final -eta/-etä and replace it with -ene-. Then attach the ordinary personal endings; the third person singular lengthens the final -e- to -ee.

Infinitive	Present stem	Meaning
vanheta	vanhene-	to grow old
lyhetä	lyhene-	to grow shorter
pidetä	pitene-	to grow longer (d→t)
lämmetä	lämpene-	to warm up (mm→mp)
paeta	pakene-	to flee (k appears)

Notice the last three rows: several Type 6 verbs also carry inverse gradation, so the stem is stronger than the infinitive. That is what produces the eyebrow-raising paeta → pakene- and lämmetä → lämpene-.

vanheta (to grow old) — the clean pattern

Vanheta has no gradation, so it shows the -ene- stem in its plainest form. Stem: vanhene-.

Person	Form	English
minä	vanhenen	I grow old
sinä	vanhenet	you grow old
hän	vanhenee	he/she grows old
me	vanhenemme	we grow old
te	vanhenette	you (pl.) grow old
he	vanhenevat	they grow old

Vanhenemme kaikki, halusimmepa sitä tai emme.

We all grow old, whether we want to or not.

Tämä juusto vain paranee, kun se vanhenee.

This cheese only gets better as it ages.

Päivät lyhenevät nopeasti elokuun jälkeen.

The days grow shorter quickly after August. (lyhetä → lyhenevät)

Keväällä päivät taas pitenevät.

In spring the days grow longer again. (pidetä → pitenevät)

paeta (to flee) — where the k appears

Paeta is the verb this class is remembered for. There is no k anywhere in the infinitive, yet the stem is pakene-: the k materializes through inverse gradation (the weak grade is ∅, the strong grade k). English speakers who reason from the spelling produce *paenen; the correct form is pakenen.

Person	Form	English
minä	pakenen	I flee
sinä	pakenet	you flee
hän	pakenee	he/she flees
me	pakenemme	we flee
te	pakenette	you (pl.) flee
he	pakenevat	they flee

Vanki pakenee, jos vartija nukahtaa.

The prisoner will flee if the guard falls asleep.

Miksi sinä pakenet vastuutasi?

Why are you running away from your responsibility?

Tuhannet pakenevat sotaa joka päivä.

Thousands flee the war every day.

💡

The gradating Type 6 verbs strengthen the same way as the gradating Type 4 verbs — always inverse, weak in the infinitive and strong in the stem: paeta → pakene- (k appears), lämmetä → lämpene- (mm→mp), pidetä → pitene- (d→t), rohjeta → rohkene- (to dare, hj→hk). If you keep the weak infinitive consonant, the verb is wrong.

lämmetä (to warm up) — inverse mm → mp

Lämmetä is a good second inverse example. The infinitive has mm, the stem has mp: lämpene-. It is front-harmonic (note the -vät in the third plural).

Person	Form	English
minä	lämpenen	I warm up
hän	lämpenee	he/she warms up
he	lämpenevät	they warm up

Sauna lämpenee noin tunnissa.

The sauna warms up in about an hour.

Ilmat lämpenevät vasta toukokuussa.

The weather won't warm up until May.

How this differs from English

English turns adjectives into "become" verbs with a whole extra word: grow old, warm up, get shorter. Finnish packs the same meaning into a single conjugated verb — vanhenen, lämpenen, lyhenen — and never needs an auxiliary. That density is elegant, but it means the change of state is invisible unless you recognize the -ene- stem. The second hurdle, the surprise k in pakenen, has no English parallel at all: no English verb sprouts a consonant when you conjugate it. Because the class is small and semantically tight, the most efficient approach is to learn the handful you actually need — vanheta, lämmetä, kylmetä, lyhetä, pidetä, paeta — each together with its minä form.

Common Mistakes

❌ Paenen metsään, jos ne tulevat.

Incorrect — paeta grows a k in the stem: pakenen, not paenen.

✅ Pakenen metsään, jos ne tulevat.

I'll flee into the forest if they come.

❌ Me vanhennemme kaikki.

Incorrect — the stem is vanhene-, so 1st plural is vanhenemme (one n), not vanhennemme.

✅ Me vanhenemme kaikki.

We all grow old.

❌ Sauna lämmenee hitaasti tänään.

Incorrect — lämmetä is inverse (mm→mp): lämpenee, not lämmenee.

✅ Sauna lämpenee hitaasti tänään.

The sauna is warming up slowly today.

❌ Päivät lyhenevat syksyllä.

Incorrect — lyhetä is a front verb; the 3rd plural takes -vät: lyhenevät, not lyhenevat.

✅ Päivät lyhenevät syksyllä.

The days grow shorter in autumn.

Key Takeaways

Type 6 verbs end in -eta/-etä. Replace that ending with -ene-: vanheta → vanhene-, paeta → pakene-.
The class is dominated by inchoatives ("become / grow more X") built from adjectives — a meaning that reliably signals Type 6.
Several members gradate, always inverse: paeta → pakene- (k appears), lämmetä → lämpene- (mm→mp), pidetä → pitene- (d→t). Never keep the weak infinitive consonant.
Only the third person singular lengthens the final -e- (vanhenee); harmony shows in the 3rd plural (vanhenevat vs. lämpenevät).
Learn each verb with its minä form (paeta – pakenen, lämmetä – lämpenen) so the strengthened stem is built in.

Now practice Finnish

Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.

Start learning Finnish→