Work Step by Step
The contrapositive of $p\rightarrow q$ is $\sim q\rightarrow \sim p$. The converse of $p\rightarrow q$ is $q \rightarrow p$. The inverse of $p\rightarrow q$ is $\sim p\rightarrow \sim q$. Hence here the converse is: If I pass all courses, then I worked hard. The inverse: If I don’t work hard, then I don’t pass some courses. The contrapositive: If I do not pass some course, then I did not work hard.