In this master’s thesis, we test the Bottleneck Hypothesis (Slabakova 2006; 2008; 2013) in L2 acquisition of English by Norwegian speakers. According to this hypothesis, functional morphology is the bottleneck of L2 acquisition, i.e. the most challenging part for L2 learners to acquire. We test two constructions that do not match in English and Norwegian: subject-verb agreement and verb movement. ...