What sentences is corret. He usually goes to work by car OR He usually goes to work in the car. I don`t understand very well, when use these prepositions "for", "to" and by. I know some rules for use of TO and FOR. For example. We use "for" for decribe the use of object,for general in this case "for"go before of a verb ending ing for instance. My book is good for leaning gramatical rules. other. This pen is for writing on my notebook. We use "To" for, when the subject is a person, In this case the verb not change. For example He studies to be a teacher, other. Pablo need to work to get money. It is correct. I have any mistakes in the structure. I hope to can understand, Please correct me. Thank you very much in advance. Thank all..