• qent at it,
• aent at it,
• sent at it,
• eent at it,
• 3ent at it,
• 2ent at it,
• wwnt at it,
• wsnt at it,
• wdnt at it,
• wrnt at it,
• w4nt at it,
• w3nt at it,
• webt at it,
• wemt at it,
• wejt at it,
• weht at it,
• wenr at it,
• wenf at it,
• weng at it,
• weny at it

The adverb form of "went at it" is "intensely" or "vigorously".

The adjective form of "went at it" would be "aggressive" or "intense".