Mezclando WAS y WERE

Recuerda:
Si en presente es IS en pasado es WAS (acabado en _S!!!).
Si en presente es ARE en pasado es WERE (acabado en _RE!!!).

It IS a good deal  ---> It WAS a good deal
You ARE a great learner ---> You WERE a great learner
How difficult IS it? ---> How difficult WAS it?
There ARE many moths in my flat ---> There ARE many moths in my flat

Maaan, it's dead easy (but it WASn't before).