Copulativos : and, not only … but also
Disyuntivos or,: either … or …, neither … nor …, whether … or …, else, otherwise
Condicionales if, whether, unless, provided, providing, as long as, in case, in case of
Concesivos although, though, even though, even if, despite, in spite of, not even if, regardless of
but, however, nonetheless, yet, still, on the other hand, instead, instead of, on the contrary