Sentence Correction

I am finalizing my weaknesses and closing down on Sentence Correction. I have noticed that the root of many of my mistakes is because of a failure to identify the correct subject. Consequently, I am either assigning the wrong verb to he wrong subject or assigning the wrong antecedent with the wrong modifying phrase. I need to make sure I am dealing with the right subject in the sentence and I am fine then. Can anyone help?

Almost There