English grammar
Word order is the other big difference.  In English, adjectives usually come before the noun. Most Romance languages normally put their adjectives after the nouns. For example, in English, a person may say I like fast cars, but in Spanish, it is Me gustan los coches rápidos [coches = cars; rápidos = fast]. The order of the words has changed: if just the words, without the grammar, are translated into English, it would mean 'to me they please the cars fast'. This is because Spanish and English have different rules about word order. In German, main verbs often come near the end of sentences, but in English we usually put them between subject and object, as: the cat sat on the mat.