Usages of manki
En la trajno ofte mankas bona signalo, tial mi ne povas malfermi la retejon.
On the train there is often no good signal, therefore I cannot open the website.
Al mia fratino mankas mono por nova biciklo.
My sister lacks money for a new bicycle.
Elon.io is an online learning platform
We have an entire course teaching Esperanto grammar and vocabulary.