1. No category

There is/there are
http://www.agendaweb.org/grammar/there_is_are-exercises.html
syntaks/setningsoppbygning
http://www.englisch-hilfen.de/en/exercises/word_order/sentences3.htm
Connectives
Enkle:
http://a4esl.org/q/h/9901/gc-connectives.html
http://www.better-english.com/grammar/conjunctions.htm
http://www.english-grammar.at/online_exercises/connectives/con001-linking-words.htm
Concord (Samsvarbøying)
https://owl.english.purdue.edu/exercises/5/13/34
velg ditt nivå:
http://www.agendaweb.org/grammar/conjunctions-english-exercises.html
Adverb or adjectives
https://owl.english.purdue.edu/exercises/2/2/8/
Verb consistency
https://owl.english.purdue.edu/exercises/2/22/51
https://owl.english.purdue.edu/exercises/2/22/49/
https://owl.english.purdue.edu/exercises/2/22/52 (advanced)