YOU SAID:

You're going to need a bigger boat

INTO JAPANESE

あなたは大きな船が必要になるだろう

BACK INTO ENGLISH

You are going to need a big ship

INTO JAPANESE

あなたは大きな船を必要としています

BACK INTO ENGLISH

You will not need a big ship

INTO JAPANESE

あなたは大きな船を必要としません

BACK INTO ENGLISH

You do not need a big ship

INTO JAPANESE

あなたは大きな船を必要としません

BACK INTO ENGLISH

You do not need a big ship