Question

underline the adverb

He never leaves his house unlocked​

Answer 1

Adverb: unlocked

Hope it will help you

Answer 2

Answer:

$\large \star\underline {\underline\purple {\mathfrak {ᴀɴsᴡᴇʀ}}} \star$

He never leaves his house unlocked.

Never is the adverb of frequency.

$\large \star\underline {\underline\purple {\mathfrak {hope \: it \: helps!!!}}} \star$