Vocalized prepositions

Some short prepositions add e before difficult consonant clusters: k/ke, v/ve, s/se, and z/ze.

Add e when it helps

The meaning stays the same. The extra e makes the phrase easier to pronounce before certain following sounds.

Clue / sound

k / ke

Written form

k Petrovi

ke škole

Note

Use ke when k + the next sound would be hard to say.

Clue / sound

v / ve

Written form

v Praze

ve škole

Note

Use ve before some difficult clusters.

Clue / sound

s / se

Written form

s Petrem

se sestrou

Note

se prevents a hard-to-say cluster.

Clue / sound

z / ze

Written form

z Prahy

ze školy

Note

ze is the pronounceable form before some clusters.

Clue / sound	Written form	Note
k / ke	k Petrovi ke škole	Use ke when k + the next sound would be hard to say.
v / ve	v Praze ve škole	Use ve before some difficult clusters.
s / se	s Petrem se sestrou	se prevents a hard-to-say cluster.
z / ze	z Prahy ze školy	ze is the pronounceable form before some clusters.