Collocations for alight - adj.

be
catch (esp. BrE)
His clothing caught alight.

remain, stay (both esp. BrE)
The fire should remain alight overnight.

set sth
The building had been set alight by the killer.

keep sth
The fires had to be kept alight each night.

well (esp. BrE)
The fire should be well alight by now.

alight with excitement, laughter, pleasure, etc. (figurative)
The children's eyes were alight with excitement.