Build your composition by using the subsequent musical layout as a reference.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/4
M:2/4
K:F
 c | A A B B | c a a/g/ a | b g g/f/e/g/ | a f f c | A A B B | c a a/g/ a | b g g/f/e/g/ | a f f :: 
[K:C] A | G e e g | f/e/d/c/ B A | G g g ^f/g/ | a/g/^f/g/ e c | G e e g | f/e/d/c/ B A | 
 G/g/g/^f/ g B | c3 :|  