1.  Simple prepositions.

Locative, i. 
    Motion to, fua, isuli, suli. 
    Motion from, fasi, ita. 
    Causation, fafi. 
    Position, fonosi.

Dative, fua. 
    Instrumental, ana, ani. 
    Relation, ana, ani, fai, sai, usi. 
    Gentive, ni, i.

The locative i is seen in ifai where; it is also largely used with adverbs of place and time and it precedes every name of place.  With the exception of the locative, the instrumental, the genitive, and also ana, ita, usi, all the foregoing prepositions are used with a suffixed pronoun; ita is used with the possessive.

Isuli denotes motion after, motion over:  sulia rodo ma na asua day and night, manata suli to know.

Fafi means, about, concerning, because of, around, on:  gera ogu fafia they crowded round him, nia alua abana fafia he laid his hand on him, lau fafi to rescue, fafi taa what about, why; fuana in order that, mae fuana to die to his disadvantage, soe ledia fuana question him about it, bae fuana forbid him, fuana taa wherefore?

Of the two instrumental prepositions ana is the one in more general use, its meaning is with:  doo gera saungia ana the thing they killed him with. Ana appears to denote the actual instrument, ani the method of action; ani may be translated withal.  When the noun denoting the instrument is not preceded by an article or when the noun is used in a general sense, ani is used in the place of ana:  suu fafia ani taa to clothe himself with what? lea ani ola to go by canoe.

The pronoun a may be suffixed to ani; tasi doo gera qaifamanatai ania the thing they taught withal; ka modea na toongi ua inao ania to mend the old garment withal.

Ana also denotes at, in, place where, among:  luma ana foaa (luma ni foaa) a house of prayer, kakao ana ano an earthen vessel, nia liu ana ta maaedangi he went on a certain day, tani ai ana aigi some of the people, nia saea ana satana he called him by his name, o ngalia ana ati from whom did you get it? lea ana fera to go into the country. Ani is used as meaning in, e langi ani nau there is nothing in me, gera ote gera ani nau they will have nothing to do with me.

Fai means with:  faioe with thee, qaimani fai to help, oko gaimani fainau you help me.  The genitive ni may be added, lea fainia go with him; fainia moreover, and.

Sia means at, at home, and always has the suffixed pronoun.  By the ordinary Melanesian idiom place at comes to be used of motion to:  siagamelu chez nous, siena ere beside the fire, lea mai siegu come here to me. Usi means over, on behalf of, for:  gera ngisu usia they spat on him, na captain usia na too a captain over the people, na taba olisia usia na aigi a redemption for the people.