Linking verb
Other languages, for example Arabic and Russian, do not have any linking verbs. That is because most languages without linking verbs have inflections, or word endings, that show what part of the sentence words are. Speakers of those languages can join the subject to the complement without any extra words since they share the same kind of inflection. For example, to say "I am a cat" word by word in Russian, a person only says "I cat" (Я кошка in Russian), but it is obvious to the Russian speaker what the meaning is because both words are in the nominative case, or the word form that shows that a word is the subject of a phrase. Since both words are in the subject form, the words are both linked together.