YOU SAID:
imagine i could never
INTO JAPANESE
私は決してできなかったと想像してください
BACK INTO ENGLISH
Imagine I could never do
INTO JAPANESE
絶対にできないと想像してみてください
BACK INTO ENGLISH
Imagine you can never do it
INTO JAPANESE
あなたがそれを決してすることができないと想像してください
BACK INTO ENGLISH
Imagine you can never do it
That didn't even make that much sense in English.