(c.) The use of ngenxa (nga and inxa), as itself a preposition, together with the complement nga before a noun in the locative, or the genitive particle a with the preformative y of inxa (i-a = ya), — is a good illustration of the transitional process above stated. The noun inxa, in ngenxa, is sometimes used as an abridged form of the plural izinxa; thus, we may have ngenxa yonke = on every side ; or ngenxa zonke = on all sides. And this word may be used either with the locative, taking nga as a complement ; thus, ngenxa ngasemuthini, round about the tree; or with the genitive, taking its preformative y or z with a (= ya or za) as a complement; thus, ngenxa yami, on my account ; ngenxa yezono, on account of sin. The cost of excavation consists of excavation of the trench or trenching and removal of soil. It is necessary to plan the movement of topsoil layer of the earth for future use in the garden or yard. Marginal part of the soil used for leveling the site, feedback podsypku foundation or are taken off-site. Places for removal of soil is determined in advance.