Njirimara nke ebu a bụ:

1. Usoro ịkpụzi ugboro abụọ

2. Mkpa ka a preformed ma ọ bụ akpa na ntụ ntụ

3. Ịcha mgbe emechara ngwaahịa ahụ

4. Ihe owuwu a nwere ike iwepụta ụdị breeki ndị ọzọ: obere ihe mgbochi na nnukwu ihe mgbochi.