では無い

ではない

is not, am not, are not

では無かろうか

ではなかろうか

is it not so?

無い物は無い

ないものはない

there's nothing we (I, he, she, etc.) don't have

はず無い

はずない

it cannot be that...; it is highly unlikely that...; it is impossible that...

で無い

でない

is not, am not, are not

はずが無い

はずがない

it cannot be that...; it is highly unlikely that...; it is impossible that...

無理はない

むりはない

(to be) natural, (to be) understandable

はずの無い

はずのない

cannot (do); it is impossible that...; it is (highly) unlikely that...

それは無い

それはない

you must be kidding; hey, come on!; surely not!

では無さそう

ではなさそう

does not seem (to be)

でも無い

でもない

it is not (like that), used to explicitly deny one thing while also implicitly denying other things

無い無い

ないない

cleaning up; tidying up

しか無い

しかない

having no choice but to...; all one can do is...; there's nothing to do except...

吝かではない

やぶさかではない

ready (to do); willing

無くては

なくては なくちゃ

unless, without

無しには

なしには

without

ではでは

then; well; so; well then

までも無い

までもない

doesn't amount to doing (something); not significant enough to require (something); unnecessary

無い

ない

nonexistent, not being (there)