Learning English - what is the difference between who and whom?

hello there a continuing debate in English usage is the question of when to

use who and when to use whom according to formal grammar who forms the

subjective case and so should be used in subject position in a sentence as in who

decided this the form whom on the other hand forms the objective case and so

should be used in object position in a sentence as in whom do you think we

should support to whom do you wish to speak although there are some speakers

who still use who and whom according to the rules of formal grammar as stated

here there are many more who rarely use whom at all its use has retreated

steadily and is now largely restricted to formal contexts the normal practice

in modern English is to use who instead of whom and where applicable to put the

preposition at the end of the sentence who do you wish to speak to who do you

think we should support such uses are today broadly accepted in standard English.