Comparisons

Comparison of inequality is when you refer to someone being sadder, happier, shorter, or taller than you.  Comparison of equality is when you refer to someone being just as tall, just as short, or just as pretty as you.  I also learned that tan mean "as", tanto and tanta means "as much", and tantos and tantas means "as many".  How you use these words depends on whether the word is singular, plural, masculine, or feminine.