Using WHOM properly
WHO and WHOM are two very commonly confused words. To be honest, most native speakers don’t even know how to use them properly 😀 I think this is a great info/comic explaining the proper usage of WHOM (and WHO). > http://theoatmeal.com/comics/who_vs_whom Enjoy and laugh a little!
This technique of substituting a personal pronoun for the relative pronoun works nicely whenever you have difficulty deciding whether to use who or whom, assuming that you have no difficulty using the proper form of personal pronouns.