Let's do Lewis' structure for CH3OH:
Look at the following drawing
In this molecule, we have 3 elements, C, H, and O.
H has only one electron on its valence shell, O has 6 in its last valence shell, and C only 4.
Valence electrons given by H atom = 1 x 4 (4 hydrogens) = 4
Valence electrons given by C atom = 4 x 1 (1 carbon) = 4
Valence electrons given by O atom = 6 x 1 (1 Oxygen) = 6
In total, we have 14 electrons.
