The aim of this paper is to present an array of grammatical structures in Croatian which could be used when interpreting English –ing forms and passive structures. We have chosen these structures because in Croatian often there are no straightforward grammatical structures with equivalent functions. Our task is to find form-based strategies for interpretation of –ing forms and passive structures. As for the passive structures, expected interpretations include the two most common Croatian structures: (i) auxiliary verb ‘to be’ + ‘glagolski pridjev trpni’ with or without agent, and (ii) verb + ‘čestica ‘se’’ structure. As for the –ing forms, things are not that simple, but generally saying, those functioning as gerunds are in Croatian comparable to ‘glagolska imenica’, those functioning as present participles as premodifications to ‘glagolski prilog sadašnji’, those functioning as postmodifications to relative clauses, and -ing clauses to ‘glagolski prilog prošli’ or to different types of complex clauses. Our results are based on a corpus compiled from graduate students' simultaneous interpretations of short speeches made by professional interpreters working for European institutions. An interesting fact was that only on five occasions did the student interpreters opt for ‘glagolska imenica’, on three occasions for ‘glagolski prilog sadašnji’, and on zero occasions for ‘glagolski prilog prošli’ when interpreting –ing forms. Regarding passive structures, the most generic form of passive in Croatian, auxiliary verb ‘to be’ + ‘glagolski pridjev trpni’ with a specified agent, was used only once by a student interpreter.