I do not speak any English.

I can say and understand a few things in English.

I can communicate simply and understand in familiar situations but only with some difficulty.

I can make simple sentences and can understand the main points of a conversation but need much more vocabulary.

I can speak and understand reasonably well and can use basic tenses but have problems with more complex grammar and vocabulary.

I speak and understand well but still make mistakes and sometimes people do not understand me clearly

I speak and understand very well but sometimes have problems with unfamiliar situations and vocabulary.