One of my bosses at my previous company is German. Her English is excellent (other than a tendency to put the emPHAsis on the wrong sylLAble) but mostly learned through school and working with English-speakers in Germany. She would come up with sentences that were, by standard American rules, just plain wrong; and yet, applying logic and consistency (which are NOT standard American rules — I have no clue how anyone learns English as a second language in this country) made perfect sense and were completely intelligible. Verbifying nouns and nounizing verbs was something she did all the time.