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28 Silvia Hansen-Schirracurrently annotated manually with the help of MMAX II (Müller & Strube 2003),a tool allowing assignment of self-defined categories and linking units.Concerning the alignment of the texts, we do not only align sentences (whichis state of the art in Translation Memories; e.g., Johansson et al. 1996) and words(which is state of the art in Machine Translation; cf. Och & Ney 2003) but alsoclauses. Word alignment is realised with GIZA++ (Och & Ney 2003), a statisticalalignment tool. Clauses are aligned manually with the help of MMAX II(see above). Sentences are aligned using Win-Align, an alignment tool within theTranslator’s Workbench by Trados (Heyn 1996). Additionally, phrase alignmentcan be derived from word alignment in combination with the phrase chunkingand syntactic functions can be mapped automatically across the parallel corpus.Each annotation and alignment layer is stored separately in a multi-layer stand-offXML representation format keeping the annotation and alignment of overlappingand/or discontinuous units in separate files. The mark-up builds on theXCES Standard.The architecture of the CroCo Corpus allows us to view the annotation inaligned segments and to pose queries combining different layers (Hansen-Schirraet al. 2006). The resource thus permits the analysis of a wealth of linguistic informationon each level helping us to understand the interplay of the different levelsand the relationship of lower level features to more abstract concepts. For parallelconcordancing, query tools such as the IMS Corpus Workbench (Christ 1994) canbe employed. Its corpus query processor (CQP) allows queries for words and/orannotation tags on the basis of regular expressions. For more complex queries,the annotated data is converted into a MySQL database. On this basis, an effectiveexploitation of different annotation and alignment layers is guaranteed. Inthe following, we will demonstrate how the bilingual CroCo Corpus is used toextract parallel grammatical structures helping translators to decide on typicalEnglish-German translation problems.3. Solving translation problems with treebanksIn many cases, typological differences between languages can be translatedstraightforwardly without any problems. Different grammatical morphologies are,for instance, not considered as major translation problems. There are, however,typological differences that are problematic for the translation process. Typically,these are constructions which exist in one language but do not exist or are rarelyused in the other. For the translation of such constructions, the translator has tocompensate them in the target language. It is, however, not always easy to findan adequate translation equivalent. For this reason, a language resource includinggrammatical descriptions of translation pairs can help to solve translation