ThewordIisthefirstpersonsingular subjectpronounanditreferstotheperson performingtheactionofaverb.
Iwanttogoouttonight.
SusanandIaregoingonholiday.
SheandIneedtotellyousomething.
ThisistheoneIlike.
Meisanobjectpronoun,anditreferstothepersonthattheactionofa verbisbeingdoneto,ortowhomaprepositionrefers.


Sheaskedmetostay/He’salwaysgivenmegoodadvice.
Betweenyouandme,Ithinkhecheated.
YouneedtotalktoMikeorme.
TheconfusionusuallyoccurswhenyouhaveI/meconnectedtoanother pronounornamewith"and"or"or."
✓HarryandIarefriends.“Harry”and“I”arebothsubjectspronouns.
✗Harryandmearefriends.
✓AreyoureferringtoHarryorme.
Harryistheobjectoftheprepositiontoandmeisanobjectpronoun.
✗AreyoureferringtoHarryorI.
ThereisaneasywaytodecidewhethertouseIorme: Takeouttheotherperson,anditshouldbeclearer.
HetoldJimand(Iorme?)toarriveearly.
✗HetoldItoarriveearly?/✓Hetoldmetoarriveearly?
Whenyouand(Iorme)firstmet.
✗Whenmefirstmetyou./✓WhenIfirstmetyou.