Grammar
A1 – Elementary A2 - Pre-intermediate B1 – Intermediate B1+ – Upper-intermediate B2 – Pre-advanced
Listening
A1 – Elementary A2 - Pre-intermediate B1 – Intermediate B1+ – Upper-intermediate B2 – Pre-advanced
Reading
A1 – Elementary A2 - Pre-intermediate B1 – Intermediate B1+ – Upper-intermediate B2 – Pre-advanced
Use of English
A1 – Elementary A2 - Pre-intermediate B1 – Intermediate B1+ – Upper-intermediate B2 – Pre-advanced
Writing
A1 – Elementary A2 - Pre-intermediate B1 – Intermediate B1+ – Upper-intermediate B2 – Pre-advanced

-ing-spelling