I would never have imagined this battle with COVID would go on as long as it has.
No one thought this war with the Coronavirus would stretch out this long.
ーI would never have imagined this battle with COVID would go on as long as it has.
「コロナとの戦いがこんなに長く続くとは想像もしなかった」
I would never have imagined で「決して想像しなかった」
battle with COVID で「コロナとの戦い」
to go on で「続く」
as long as で「〜もの長い間」
ーNo one thought this war with the Coronavirus would stretch out this long.
「コロナとの戦いがこんなに長引くとは誰も思わなかった」
war with the Coronavirus で「コロナとの戦い」
to stretch out で「長引く」
ご参考まで！
カナダ 
