In the 1970s Dulay and Burt s studies showed that learners acquire grammar forms and structures in a pre-determined, inalterable order, and that teaching or correcting styles would not change this ( Russell, 2009 ).
12.
Ancient Romans would use the expression " Twelve Tables " instead of " res publica ", when referring to their constitution at the time of the " republic ", and the " inalterable laws installed by the divine Augustus ", for their equivalent of a constitution in the era of the early Empire.
13.
La clasificaci�n de los organismos vivos puede apreciar dos situaciones evolutivas contrapuestas : por un lado, la estasis de los planes corporales, que se mantienen inalterables por miles de millones de a�os, por otro lado, la evoluci�n de los caracteres, en que se observa que ni la velocidad de la evoluci�n ni el modo en que evolucionan son uniformes.
14.
The founder of the educational establishment inalterable rector from the day of foundation of the institute of higher education and to the day of his death on 1 September 2007, professor, corresponding member of the Academy of Law Sciences of Ukraine, academician of the Academy of the problems of security, defense and law and order of Russian Federation, Honored Lawyer of Ukraine, Honored Citizen of Luhansk Colonel General of militia Eduard Oleksiyovich.
