YOU SAID:
He really jumped the gun on that one.
INTO JAPANESE
彼は本当にそのいずれかでフライングをしました。
BACK INTO ENGLISH
He is one that really has flying.
INTO JAPANESE
彼は本当に飛行を持ちます。
BACK INTO ENGLISH
He really has a flight.
INTO JAPANESE
彼は本当に、便を持っています。
BACK INTO ENGLISH
He has the flight.
INTO JAPANESE
彼は、便を持っています。
BACK INTO ENGLISH
He has flight.
INTO JAPANESE
彼は、便を持っています。
BACK INTO ENGLISH
He has flight.
That didn't even make that much sense in English.