- SE Introduction to Contact Linguistics. WS 2018/19, HU Berlin.
- BS Why creoles are so special?. SS 2018, U Wroclaw.
- BS Contact languages and Language Evolution. SS 2018, UNESP Sao José de Rio Preto.
- SE Introduction to contact linguistics. SS 2017, HU Berlin.
- BS Introduction to Creole languages. SS 2017, U Wroclaw, Polen.
- BS Creole languages: facts, fancies, and fallacies. WS 2016/17, U Breslau.
- SE Introduction to Contact Linguistics. SS 2016, HU Berlin.
- UE Introduction to Contact Linguistics. SS 2015, HU Berlin.
- SE Languages in Contact. WS 2014/15, HU Berlin.
- SE Creoles and Typology. WS 2013/14, HU Berlin.
- Discourse Organisation in Varieties of English. SS 2010, HU Berlin.
- S The Information Structure of Varieties of English. WS 2009/10, HU Berlin. (Downing, Laura J. & Tonjes Veenstra).
- Kontakt-induzierte Sprachvariation. WS 2008/09, HU Berlin.
- Language Contact. SS 2006, DGfS/GLOW Summerschool, U Stuttgart.
- Understanding North America I. SS 2005, FU Berlin.
- German-English contact in America: modelling variation and change. SS 2005, FU Berlin.
- Introduction to Linguistics. WS 2004/05, FU Berlin.
- Parameters: typology and variation. WS 2004/05, FU Berlin.
- Aloha: the birth of a language. SS 2004, FU Berlin.
- Introduction to Second Language Acquisition. SS 2004, FU Berlin.
- Introduction to Linguistics. WS 2003/04, FU Berlin.
- Introduction to Minimalist Syntax. WS 2003/04, FU Berlin.
- Immigrant Languages: German in the USA. SS 2003, FU Berlin.
- Introduction to Linguistics. WS 2002/03, FU Berlin.
- Introduction to Morphology. WS 2002/03, FU Berlin.
- Introduction to Linguistics. SS 2002, FU Berlin.
- Introduction to Language Contact. SS 2002, FU Berlin.
- Introduction to Linguistics. WS 2001/02, FU Berlin.
- Introduction to Linguistics. SS 2001, FU Berlin.
- Language Contact & Syntactic Theory. SS 2001, FU Berlin.
- Introduction to Linguistics. WS 2000/01, FU Berlin.
- Language Contact in the Americas. WS 2000/01, FU Berlin.
- Introduction to Linguistics. SS 2000, FU Berlin.
- Introduction to Syntax. SS 2000, FU Berlin.
- Creole Studies. WS 1999/00, FU Berlin.
- Functionalism vs. formalism in Linguistics. WS 1999/00, FU Berlin.
- SLA and Language Contact. SS 1999, HU Berlin. (Becker, Angelika & Tonjes Veenstra).
- Creole Studies and language Contact. SS 1998, U Potsdam.
- Languages in Contact. SS 1994, U Utrecht. (Nortier, Jacomien & Tonjes Veenstra).
- Languages in Contact. SS 1993, U Utrecht. (Nortier, Jacomien & Tonjes Veenstra).
- Introduction to Generative Grammar. WS 1992/93, U Amsterdam. (Leemans, Geertje & Tonjes Veenstra).
- The Structure of French Creoles. WS 1991/92, U Amsterdam. (Muysken, Pieter & Tonjes Veenstra).
- Creole Studies. WS 1991/92, U Amsterdam.
