rules for usage of pronouns

rule 1:  if positive idea or phrase is expressed the sequence of pronouns should be third person,second person&first personEg:-he you and i passed the exam

rule 2: if a negative idea or criticism is conveyed then the order of personal pronouns is 1st person,2nd person&3rd person 

Eg:  i,you and he failed the exam

rule 3:(EACH,EVERY,EITHER,NEITHER,EVERYONE,EVERYBODY etc) are used to refer the experience of an individual who is part of a group.

Eg: each of boy was/is given home work

rule 4: this is one of the important rule in usage of neither, either

when neither or either are used the group size is limited to 2.

Eg: neither of 2 girls passed the exam (here no need to mention 2 by default it means there are 2 nos)

rule5:   usage of relative pronouns:(which,whose,who,whom)

which is used for plants,animals,lifeless objects,babies

who is used for adults,human.

that is used for all category

rule 6:usage of reflexive pronoun:

 eg: one should do one's duty