Explain the common name and $IUPAC$ name of amine compounds with suitable examples.

(N/A) Common nomenclature of amine compounds:
$(i)$ Primary alkylamine: In aliphatic amines,the compound is named by prefixing the alkyl group to the word 'amine' (e.g.,$C_2H_5NH_2$ is ethylamine).
$(ii)$ Secondary and tertiary alkyl amines: When two or more groups are the same,the prefix 'di' or 'tri' is appended before the name of the alkyl group (e.g.,$(CH_3)_2NH$ is dimethylamine and $(CH_3)_3N$ is trimethylamine).
Nomenclature of amine compounds in $IUPAC$ system:
$(i)$ In the $IUPAC$ system,amines are named as alkanamines,derived by replacing the '$e$' of the alkane with the word 'amine'. For example,$CH_3NH_2$ is methanamine and $CH_3CH_2NH_2$ is ethanamine.
$(ii)$ If more than one amino group is present at different positions in the parent chain,their positions are specified by numbering the carbon atoms bearing $-NH_2$ groups,and a suitable prefix such as 'di','tri',etc.,is attached to the amine. The letter '$e$' of the suffix of the hydrocarbon part is retained. For example,$H_2N-CH_2-CH_2-NH_2$ is named as ethane$-1,2-$diamine.
$(iii)$ For secondary and tertiary amine compounds,the position of substituents attached to the nitrogen atom is indicated by using the capital letter '$N$'.
$(iv)$ In arylamines,the $-NH_2$ group is directly attached to the benzene ring. $C_6H_5NH_2$ (aniline) is the simplest example of an arylamine.