The conditional present passive (tehtäisiin)

The Conditional Present Passive

When proposing new ideas—like city planning or infrastructure changes—you often want to suggest what would or should be done generally, without specifying exactly who will do the work. For this, Finnish uses the conditional present passive.

Forming the Conditional Passive

The easiest way to form the conditional present passive is to build it from the past passive form of the verb. Replace the final -iin with -aisiin or -äisiin (depending on vowel harmony).

VerbPast PassiveConditional PassiveMeaning
purkaapurettiinpurettaisiinwould be demolished
rakentaarakennettiinrakennettaisiinwould be built
lisätälisättiinlisättäisiinwould be added
uudistaauudistettiinuudistettaisiinwould be renewed
vähentäävähennettiinvähennettäisiinwould be reduced

Here is a common verb used in urban planning to get started:

to demolish
purkaa

Now, let's see the conditional passive in action to propose general changes to a city:

The old factory would be demolished.
Vanha tehdas purettaisiin.
A new pedestrian street would be built in the center.
Keskustaan rakennettaisiin uusi kävelykatu.
New benches would be added to the market square.
Torille lisättäisiin uusia penkkejä.

Active vs. Passive Conditional

When pitching infrastructure plans, you will often use a mix of active and passive forms. Use the passive conditional to describe the actions taken by planners, and the active conditional (ending in -isi) to describe the effect the new infrastructure itself would have.

Let's look at a new piece of infrastructure as an example:

bike path
pyörätie

Notice the difference below between the passive action (uudistettaisiin = would be renewed by someone) and the active consequence (vähentäisi = the path itself would reduce the traffic):

This bike path would be renewed in the summer.
Tämä pyörätie uudistettaisiin kesällä.
The new bike path would reduce traffic.
Uusi pyörätie vähentäisi liikennettä.

By combining these active and passive conditional structures, you can map out clear, comprehensive plans for your city:

In the center, traffic would be reduced and a new square would be built.
Keskustassa vähennettäisiin liikennettä ja rakennettaisiin uusi aukio.