Explanation
Expresses 'the more ~, the more ~'; a proportional relationship between two phrases.
Formation
Verb-casual + ば + Verb-casual + ほど, い-Adjective + ば + い-Adjective + ほど, な-Adjective + であれば + な-Adjective + ほど
Detailed explanation
The ～ば～ほど grammar point is used to express a proportional relationship between two phrases, meaning 'the more A, the more B'. The formation differs depending on whether it is used with a verb, い-adjective, or な-adjective.
Examples
Hayaku okireba okiru hodo, jikan ga takusan aru.
The earlier you wake up, the more time you have.
Renshuu sureba suru hodo, joutatsu shimasu.
The more you practice, the more you will improve.
Ryouri ga oishikereba oishii hodo, mina ga yorokobimasu.
The more delicious the food is, the happier everyone will be.
Nihongo ga jouzu de areba jouzu na hodo, Nihon no seikatsu ga raku ni narimasu.
The better your Japanese is, the easier life in Japan will be.
Practice
Grammar content sourced from hanabira.org.