Instrumental Case (-val/-vel) in Hungarian

Overview

The instrumental case in Hungarian, formed with the suffix -val (back vowel) or -vel (front vowel), expresses "with" — both for instruments/tools and for accompaniment. It is one of the most frequently used cases and has a distinctive phonological feature: consonant assimilation, where the v of the suffix doubles the preceding consonant.

At the CEFR B1 level, mastering the instrumental case and its assimilation rules is important for expressing how actions are performed, who accompanies whom, and what means of transport is used. The assimilation rule is unique to -val/-vel and the translative -vá/-vé, making it a distinctive feature to learn.

The instrumental answers the question kivel? (with whom?) and mivel? (with what?).

How It Works

Basic Rule

Noun ending	Suffix form	Example
Vowel	-val/-vel (no change)	autóval (by car), kertvel → kerttel*
Consonant	consonant doubles	kés + vel → késsel, barát + val → baráttal

*After vowel-final words, -val/-vel simply attaches. After consonant-final words, the v assimilates to the final consonant.

Consonant Assimilation

The v in -val/-vel becomes a copy of the preceding consonant:

Noun	+ val/vel	Result	English
kés (knife)	kés + vel	késsel	with a knife
Péter	Péter + vel	Péterrel	with Péter
kéz (hand)	kéz + vel	kézzel	by hand
barát (friend)	barát + val	baráttal	with a friend
tej (milk)	tej + vel	tejjel	with milk

After Vowels: No Assimilation

Noun	+ val/vel	Result	English
autó	autó + val	autóval	by car
kávé	kávé + val	kávéval	with coffee

Uses of the Instrumental

Use	Example	English
Tool/instrument	Késsel vágom.	I cut with a knife.
Accompaniment	Péterrel megyek.	I go with Péter.
Transport	Autóval megyek.	I go by car.
Material	Kézzel írok.	I write by hand.

Examples in Context

Hungarian	English	Note
késsel vágom	I cut with a knife	instrument
Péterrel megyek	I go with Péter	accompaniment
autóval	by car	transport
kézzel írok	I write by hand	means
ceruzával rajzolok	I draw with a pencil	instrument
tejjel kérem	with milk, please	ingredient
busszal megyek	I go by bus	transport (busz→busszal)
Kivel beszélsz?	Who are you talking to?	question
cukorral	with sugar	addition
barátommal	with my friend	accompaniment + possessive

Common Mistakes

Forgetting consonant assimilation

• Wrong: késvel
• Right: késsel
• Why: The v assimilates to the preceding consonant. késvel → késsel (s+v → ss).

Not doubling correctly

• Wrong: barátvel
• Right: baráttal
• Why: t + v → tt (the v becomes a copy of t). Back vowel word takes -val base, but v assimilates to -ttal.

Applying assimilation after vowels

• Wrong: autóvval or autóval (no issue here actually)
• Right: autóval
• Why: After vowels, no assimilation occurs. The suffix simply attaches as -val/-vel.

Usage Notes

The instrumental case is used idiomatically in many fixed expressions: szemmel láthatóan (visibly, lit: "with eye seeably"), szívvel-lélekkel (wholeheartedly, lit: "with heart-soul").

For transport, Hungarian consistently uses the instrumental: autóval, busszal, vonattal, repülővel (by car, bus, train, plane). This replaces English's various prepositions (by car, on the bus, on the train).

Practice Tips

• Practice the assimilation with ten consonant-final nouns: write out the full instrumental form for each.
• Create sentences about your daily commute: Busszal megyek dolgozni. Autóval jövök haza.
• Practice kivel? and mivel? question-answer pairs.

Related Concepts

• Prerequisite: Introduction to Cases — the broader case system