solvebli

Tiu problemo tro malfacile solveblas por bazlernejanoj.

This problem is too difficult for primary school children to solve.

Tiu problemo tro malfacile solveblas por vi.

This problem is too difficult for you to solve.

Ĉi tiu problemo malfacile solveblas. Vi do pli bone eksolvintus la alian.

This problem is hard to solve. So you had better begin with that one.

Tiu problemo ne solveblas per la kutima maniero.

You cannot solve this problem in an ordinary way.

Tiu problemo tro malfacile solveblis por ŝi.

This was too difficult a problem for her to solve.