This pattern is used to introduce, define, or describe an object or an event.ワクチンは、病気を防ぐ薬です。
Verb in て form + もN5
This structure is used to express the meaning of even if... still..., indicating concession, contrast, or supposition.病気になっても、すぐに治ります。
Dictionary form verb + とN5
This pattern is used to express an inevitable result: when the action in the preceding clause occurs, the following clause will certainly occur.すると、体は病気を防ぐ力を作ります。
Noun + を + VerbN5
This pattern is used to indicate the object that is directly affected by the action.弱い病気を体に入れます。