This study investigates modal particles (MP), that is words that are counted among the means of expressing modality. Karagjosova (2004, p. 1) defines them as “conventional utterance modifiers that indicate speaker’s beliefs with respect to the propositional content of their carrier utterance or the cognitive status of the propositional content”. The research will be conducted on the basis of three languages, namely German, Croatian and English. While in German and Croatian MPs exist as a word category, in English the function of German and Croatian particles is expressed by other means (cf. Kresić & Batinić, 2014; Batinić, Kresić & Pavić Pintarić, 2015; Kresić, Batinić Angster & Diewald, 2017). The focus of this study will be the realization of the following Croatian particles in Wh sentences: 1) MP li, its equivalent MP group li+samo, and 2) MP ono. According to a previously conducted corpus analysis (Kresić & Batinić, 2014) these Croatian particles in German correspond to the following pairs of synonymous MPs – bloß und nur (1), gleich and doch (2), respectively. On the other hand, English has some equivalent expressions – on earth (1), and again (2). For the present study – the research will be conducted among two groups of participants. The first group will consist of Croatian graduate students in German studies, and the second group will include graduate students in English studies. Croatian being their L1 is the source language, whereas German and English as their foreign languages are viewed as target languages. According to Gulan, Kresić & Pavić Pintarić (2017) it can be expected that these advanced language learners will use appropriate equivalents in the target languages. Participants will be given a questionnaire in which they will have to translate sentences containing a certain MP. These sentences will be preceded by a context, which is of great importance considering MPs are anaphorically dependent on the context (Kresić et al. 2017, p. 14). It is assumed that learners of German and English will translate the particles in accordance with the listed equivalents proposed by Kresić & Batinić (2014). The aim of this thesis is to verify if these German particles and English expressions match the function Croatian MPs express in context.