Amaral and Roeper (this issue; henceforth A&R) argue that all speakers -- regardless of whether monolingual or bilingual -- have multiple grammars in their mental language representations. They further claim that this simple assumption can explain many things: optionality in second language (L2) language behaviour, multilingualism, language…

Describes a project that considers: how one's ability to produce non-native linguistic intuitions develops during adult second language acquisition; how non-native intuitions relate to the emerging of one's receptive and productive abilities in a second language; and what may be the appropriate empirical methodologies for collecting and analyzing…