1. Form and meaning
Many adjectives form the comparative with -er and the superlative with am … -sten. Use als after a comparative and so … wie for equality. Je … desto/umso expresses a proportional relationship; the je-clause uses subordinate word order and the desto-clause uses main-clause order.
When you study this pattern, identify its communicative purpose first. Then check the verb form, case and word order. German clauses are easier to control when you learn the connector together with the sentence pattern it requires.