Eng

Indefinite...

無期

Indefinite

沒有一定

General, Indefinite, Non-specified, Undefined, Unspecific

(Did not, Did not have, Didn't, Do not, Do not have, Does not, Does not have, Doesn't, No, Was not, Were not, Definitely, Probably)

不一定

Indefinite, Not certain, Not definite, Unsure

(Are all, Different, Not the same, Were all, Definitely, Probably)