All Verbs

 from Wikipedia's copula article:

In Siouan languages like Lakota, in principle almost all words — according to their structure — are verbs. So not only (transitive, intransitive and so-called 'stative') verbs but even nouns often behave like verbs and do not need to have copulas.
For example, the word wičháša refers to a man, and the verb "to-be-a-man" is expressed as wimáčhaša/winíčhaša/wičháša (I am/you are/he is a man). Yet there also is a copula héčha (to be a ...) that in most cases is used: wičháša hemáčha/heníčha/héčha (I am/you are/he is a man).
In order to express the statement "I am a doctor of profession," one has to say pezuta wičháša hemáčha. But, in order to express that that person is THE doctor (say, that had been phoned to help), one must use another copula iyé (to be the one): pežúta wičháša (kiŋ) miyé yeló (medicine-man DEF ART I-am-the-one MALE ASSERT).
In order to refer to space (e.g., Robert is in the house), various verbs are used, e.g., yaŋkÁ (lit.: to sit) for humans, or háŋ/hé (to stand upright) for inanimate objects of a certain shape. "Robert is in the house" could be translated as Robert thimáhel yaŋké (yeló), whereas "there's one restaurant next to the gas station" translates as "owótethipi wígli-oínažiŋ kiŋ hél isákhib waŋ hé".

Lakota also has men's and women's spoken language versions. What a delightful language.