言わば、言うなれば、言うならば and 言ってみれば


Do all the expressions 言わば、言うなれば、言うならば and 言ってみれば mean "so to speak" and can
be used interchangeably or is there any difference between them?

I can't get very well the differences in nuances between these expressions (in
case there are).

Besides, is there any other similar expression to these previous ones meaning
"so to speak"?




There is little difference, and they are all interchangeable. Although they
are all stiff and formal phrases, I feel that 言わば and 言ってみれば are relatively
more casual, while 言うなれば is only used in serious essays and such.




There is little difference, and they are all interchangeable. Although they
are all stiff and formal phrases, I feel that 言わば and 言ってみれば are relatively
more casual, while 言うなれば is only used in serious essays and such.

