• Basic forms
• 探す — search for; look for / base form
• 探します — search for / masu form
• 探した — searched for / ta form
• 探して — searching … / te form
• 探さない — do not search for / negative
• 探せば — if (someone) searches / conditional
• Common expressions
• 鍵を探す — look for a key
• 仕事を探す — look for a job

探す（さがす） is a godan transitive verb. It means to look for something specific — a person, an item, a place, or an opportunity.

• Basic forms
• 探る — probe; feel out; investigate / base form
• 探ります — probe / masu form
• 探った — probed; investigated / ta form
• 探って — probing … / te form
• 探らない — do not probe / negative
• 探れば — if (someone) probes / conditional
• Common expressions
• 原因を探る — probe the cause
• 相手の気持ちを探る — feel out the other person’s feelings

探る（さぐる） is a godan transitive verb. It often means to probe or investigate indirectly — facts, causes, intentions, or someone’s feelings.