The article elaborates on ways of English loanwords integration into Ukrainian, with comparison to the situation in German and Serbian. The subject matter of research includes processes of adaptation in phonetics and grammar of the above-mentioned languages. The main intralinguistic factor that influences adaptation process is disparity of phonetic and grammar level configuration of languages in contacts. English has an affluent system of vowels that causes necessity of simplification of a phonetic form of English borrowings in other languages. The major factor of phonetic adaptation is an existing tradition of conveying sounds in loanwords in a certain way. However, nowadays transcription also plays a significant role in phonetic adaptation, i.e. integration of loanwords is based on their pronunciation rather than spelling. Uncertainty of patterns for conveying sounds of foreign languages in loanwords leads to variability of phonetic form of English loanwords at the initial stage of their functioning in the recipient language. Grammar adaptation involves adjusting of loanwords to the recipient language. Its course depends on morphological type of language and affinity. The research has revealed main patterns how English loanwords obtain the category of gender, which is absent in English. These patterns are based on both formal and semantic factors. Moreover, the author considers the ways of pluralia tantum nouns integration into the system of the recipient language. The analysis has shown that there is a typological difference between borrowing process on the one hand in Slavic languages and on the other hand in German, i.e. Slavic languages, unlike German, have obligatory derivational stage for verbs and adjective adaptation, which makes process of borrowing more complicated in Slavic languages.