we insist on teaching structures and words which students will very unlikely use. Not because they lack the ability but because culturally it's just too different. they don't relate to them.
their brain uses whatever pattern it has and whatever is simpler to retrieve.
that's considering they are not exposed to real English and by real i mean British or American english, or Australian.

ensenyar angles avui en dia es desensenyar el que saben o creuen saber.
desensenyar mal habits de parla i escriptura

i tall that to vicky