Structures are very important when writing a song. Without a structure, there is no order in which the song goes. In the below picture you can see what a basic song structure looks like. This is common in most pop songs and sometimes rock too.
It is the perfect structure to use for beginner songwriters because it is easy to remember and flows well.
Bibliography:
McGinnis, A., 2018. Infographic: Song Structure | Taylor Robinson Music Blog. [online] Taylor Robinson Music Blog. Available at: <http://blog.taylorrobinsonmusic.com/infographic-song-structure/> [Accessed 23 March 2020].