Can "dělali" be used instead of "dělaly" here ? (It was marked wrong for me and I do not know why.) I have the same question about another sentence, "Celý den jsme psali dopisy.", where if I write "psaly" instead of "psali" it is also marked wrong. So, to sum up everything written above, I am confused whether to write these verbs with "i" ending or "y" enging, help please :(
with no indication of gender(s) provided, both -i and -y are possible. (even -a would theoretically be possible, but it would sound different in a listening challenge.)
the problem is on our side: we have to disable the listening challenge every time duolingo adds or replaces a voice.