El coche es cómodo.
Los coches son cómodos.
Trains are cheap.
The bike is eco-friendly.
Los trenes son baratos.
Los barcos son caros.
Las bicicletas son ecológicas.
The train is cheap.
The boat is expensive.
La bicicleta es ecológica.
Cars are comfortable.
The car is comfortable.
Boats are expensive.
Bikes are eco-friendly.
El tren es barato.
El barco es caro.
