Konrad Szczesniak is Adjunct Professor at Palacky University, Czech Republic, and Assistant Professor at the University of Silesia, Poland, where he teaches courses in Linguistics, Phonetic Transcription, and Descriptive Grammar. His research interests include the use of grammatical constructions in English, Polish, Czech and Portuguese studied within the framework of construction grammar. He also focuses on the development of lexical proficiency and intuition in L1 and L2.Andrzej Porzuczek is Assistant Professor at the Institute of Linguistics, University of Silesia, Poland. His research areas comprise foreign language acquisition, interlanguage phonology and practical phonetics pedagogy. His recent publications include an English pronunciation coursebook for Polish learners, a monograph on the temporal characteristics of the Polish learner's read English speech, and several articles devoted to the prosodic aspects of Polish-accented English pronunciation and teaching practical English phonetics to Polish learners. He has also presented papers at numerous international conferences on phonetics, phonology and foreign language acquisition.