La valvo lasas aeron en la aertubon.

the

Breakdown of La valvo lasas aeron en la aertubon.

• en: into
• lasi: to let
• aero: the air

Questions & Answers about La valvo lasas aeron en la aertubon.

Why does aeron end in -n?

Because aeron is the direct object of lasas.

• lasi = to let, allow
• lasas = lets / allows
• The thing being let or allowed is aeron = air

So in La valvo lasas aeron..., the valve is allowing air, and Esperanto marks that direct object with -n.

• aero = air
• aeron = air (as the direct object)

Why does aertubon also have -n after en?

Here en shows movement into something, not just location.

Esperanto often uses -n after a preposition when there is a sense of direction toward a place.

So:

• en la aertubo = in the air tube / inside the air tube
• en la aertubon = into the air tube

In this sentence, the air is being let into the tube, so aertubon takes -n.

What is the difference between en la aertubo and en la aertubon?