person inflexions must make a distinction between instances where the two clauses have the same subject and those where the subject is different. In English, the sentence "He is leaving because he is tired" is ambiguous unless you know whether or not the two "he"s refer to different people. In Inuktitut, in contrast, this situation is clearly marked: The set of suffixes used to indicate the other third person is sometimes called the third person different, but is also often called the fourth person. This additional grammatical person is a pervasive feature of Inuktitut. Causative The causative is used to link propositions that follow logically. It is much more broadly used in Inuktitut than similar structures are in English. The causative is one of the most important ways of connecting two clauses in Inuktitut: Conditional & subjunctive This structure has a meaning closer to an "if... then..." sentence in English than the kind of structure usually referred to as "conditional". It generally involves using an additional marker of the future tense or the conditional mood in the main clause: Frequentative The frequentative endings indicate that two propositions routinely occur together. In English, this is expressed with words like usually, often, generally and whenever. It generally involves using an additional marker in the main clause to indicate frequency: Dubitative The dubitative suffixes express uncertainty or disbelief about a proposition: Verb modifiers In addition to root verb morphemes and inflexions to indicate the number and person of the arguments, Inuktitut has a large inventory of morphemes that modify the verb and may be placed between the root morpheme and inflexions, or at the end of the inflected verb. In pedagogic and linguistic literature on Inuktitut, these infix morphemes are often called verb chunks. These modifiers indicate tense, aspect, manner and a variety of functions that in English require auxiliary verbs, adverbs, or other structures. This section can only list a small selection of the many verb chunks, in order to give a sense for how the system works: Modifiers of manner Consequently one can say: Modifiers of tense While Indo-European languages tend to make tense distinctions in terms of before or after some reference event, Inuktitut makes a number of somewhat fuzzy distinctions depending on how far into the past or the future the event took place. In English, this distinction requires additional words to place the event in time, but in