0 1 8) Subject-Verb in a clause with "se" 0 1 9) Subject-Verb with "gustar"-like verbs 0 1 Total 5 11  Out of the 29 flagged errors by the grammar, there have been 12 false positives.
3 of them were due to misspellings in the learner corpus, 1 to syntactic errors, 4 to parser errors, and 4 of them are "real" false alarms due to the grammar.