As languages evolve, they follow a certain trend. Often in isolating languages, certain free morphemes start to fuse with other free morphemes, thereby losing their grammatical “freedom”: they become bound morphemes. What started out as a normal pronoun, can become a clitic to a verb and then even an affix. Adverbs of time or short verbs that express a time concept (like ‘start’, ‘finish’, ‘want’) can lose their wordhood and become tense affixes on verbs. A noun which means ‘group’ can shorten phonologically and become a plural suffix. Thus, a formerly isolating language can begin to be agglutinating.