Subjective Pronouns

Subjective Pronouns have been very hard foe me to master in my essays. I often use the pronouns incorrectly and am working hard to fix that. So here are a few rules to subjective pronouns that have helped me so I hope they help you as well.
Remember subjective pronouns are used when the pronoun is the subject of the sentence. You can remember this easily if you just input the pronoun into a simple sentence, this will help you define if it is subjective or not.
Example: _____ did the job. He, she, I it, we, they, all fit into the blank and are subjective pronouns.