YOU SAID:
The pigs will never fly
INTO JAPANESE
豚は飛ぶことは決してないだろう
BACK INTO ENGLISH
Pigs will never fly
INTO JAPANESE
豚は飛ぶことはありません
BACK INTO ENGLISH
Pigs do not fly
INTO JAPANESE
豚は飛ばない
BACK INTO ENGLISH
Pigs do not fly
You've done this before, haven't you.