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    The Vienna Oxford International Corpus of English (VOICE), a collection of English as a Lingua Franca (ELF) currently under construction, defines lingua franca as an additionally acquired language system that serves as a means of communication for speakers from different speech communities, who use it to communicate with each other but for whom it is not their native language.

    Early findings from the VOICE corpus tentatively identify a number of features which point to systematic lexicogrammatical differences between native-speaker English and ELF, for example dropping the third person present tense ‘s’ (e.g. she wear), omitting definite and indefinite articles, insertion of prepositions (e.g. can we discuss about this issue). These features are not a threat to comprehension, as they involve typical errors that most English teachers would correct and remediate. However, Seidlhofer (2004) points out that they appear to be generally unproblematic and do not cause an obstacle to communicative success in ELF. 

    The work of Jenkins (1996, 2000, 2004, 2005) has also been very influential in relation to the teaching of pronunciation for ELF. Her research finds that a number of items common to most native-speaker varieties of English were not necessary in successful ELF interactions; for example, the substitution of voiceless and voiced th with /t/ or /s/ and /d/ or /z/ (e.g. think became sink or tink, and this became dis or zis). Jenkins argues that such features occur regularly in ELF interactions and do not cause intelligibility problems.

    Problems may arise in the (perhaps unfair) equation between a reduced or ‘stripped down’ ELF syllabus and an impoverished experience of the L2. Indeed, it could be argued that learners of any language always end up producing less than the input they are exposed to, and that if that input itself is deliberately restricted, then even less will be the outcome.

(O’KEEFFE, A., MCCARTHY, M. & CARTER, R. From corpus to classroom. Language Use and Language Teaching. Cambridge, CUP. 2007. Adaptado)