haber and ser
why is it correct to say como si no hubiera mañana.
instead of
como se no fuera mañana?
3 Answers
Se should be si. Other than that, it depends on the context. Both could be correct depending on the context.
"Como se no fuera" doesn't make sense.
This is a interesting example where the subjunctive future should be used, however as it has actually disappeared or almost no one uses it, then we say "hubiera" instead of "hubiere". In this case the verb "haber" is used to refer the existence of something.
"Como si" can be translated to English as only "Like", although we -Spanish speakers- probably would like to say "like if/whether".
Is it common to reply " como si ,as if " when one is credulous at a statement .