• Basic forms
• 透ける — show through; be see-through / base form
• 透けます — shows through / masu form
• 透けた — showed through / ta form
• 透けて — showing through … / te form
• 透けない — does not show through / negative
• 透ければ — if (something) shows through / conditional
• Common expressions
• シャツが透ける — the shirt is see-through
• 下着が透ける — underwear shows through
• 向こうが透けて見える — you can see through to the other side
• More
• 透けている — is transparent / state

透ける（すける） is an ichidan intransitive verb. It describes something thin or light allowing what is behind it to be partially visible. This is the most common everyday verb associated with 透.

• Basic forms
• 透る — pass through; penetrate / base form
• 透ります — passes through / masu form
• 透った — passed through / ta form
• 透って — passing through … / te form
• 透らない — does not pass through / negative
• 透れば — if (something) passes through / conditional
• Common expressions
• 光が透る — light passes through
• 声が透る — the voice carries clearly
• 視線が透る — one’s gaze penetrates (written tone)
• More
• 透っている — is penetrating / state

透る（とおる） is a godan intransitive verb. It describes light, sound, or gaze passing through something. It is more descriptive and literary than 透ける, and often used in written or expressive contexts.