"The mushroom is not tasty."
Translation:הפטרייה לא טעימה.
In the previous question for me, it said "which of these is 'breakfast,'" and it gave me 4 choices with pictures. There was a comments button, which there never is for a pictures question, but when I tried to leave a comment it didn't work. Does anyone else have that problem?
Well, firstly פִּטְרִיָּה is a feminine noun and would need זֹאת, and secondly, you are obliged to use the copula before an adjective only, when the subject is indefinite, like in פִּטְרִיָּה הִיא לֹא טְעִימָה a mushroom is not tasty, in order not to say פִּטְרִיָּה לֹא טְעִימָה an untasty mushroom.