Verbs are not characterised by grammatical gender. Only past participles that look like adjectives have gendered endings, e.g. tired - κουρασμένος, -ένη, -ένο, hungry - πεινασμένος, -ένη, -ένο.
Where do I find the explanation of είμαστε? I don't see it in the Tips and Notes of this lesson
It's in the Tips & notes for Basic 1. Here it is for your convenience:
Examples: To BE
(Εγώ) είμαι = I am
(Εσύ) είσαι = you are (singular)
(Αυτός, αυτή, αυτό) είναι = he, she or it is
(Εμείς) είμαστε = we are
(Εσείς) είσαστε = you are(plural) (or είστε)
(Αυτοί, αυτές, αυτά) είναι =they are
Important note: the pronoun (Εγώ, εσύ ...is not always needed.)
We cannot see what the learner has written. And we do not grade the answers, that is done by the computer program.You should send a screenshot.
I know that it's wrong, but somewhy I think that it should be είμασμε.. Would be more logical, maybe..
In present active voice the 1:st person plural has the ending -ο(υ)με with the -με that you want
In present passive the ending is -όμαστε
είμαι is a mediopassive verb ( a verb conjugated in passive with active meaning) and irregular