Question

What is the -AR ending for the subject ellos?

Answer 1

This none for AR But For ER yes What is the verb ending when ER is the subject?
If the subject is you – informal (tú), conjugate by dropping the ending and adding -es (for -er verbs). If the subject is he (él), she (ella) or you – formal (usted), conjugate by dropping the ending and adding -e (-er verbs).

Answer 2

There is no -AR ending for ellos? ellos means “they”. There’s no AR ending. Please rephrase what you are asking.