I went to the farm and saw many sheeps
I went to the forest and saw many deers
I went to the castle and saw many cannons
I went to the toy shop and saw many dices
I went to the airport and saw many aircrafts.
I went to school and I learned that, in English,
Some nouns are BOTH singular AND plural.
I went back to the farm and saw many sheep
I went back to the forest and saw many deer
I went back to the castle and saw many cannon
I went back to the toy shop and saw many dice
I went back to the airport and saw many aircraft
No more sheeps, no more deers, no more aircrafts.