ADV

properly, well
I had a streaming cold, so I could not smell properly
almost
Snow fell so that you could almost smell the cold

VERB + SMELL

can/could

ADV

strongly
His clothes smelled strongly of fish
faintly, slightly, vaguely
He smelled faintly of sweat
deliciously, pleasantly, sweetly

PREP

like
It smells like rotten meat!
of
The kitchen smelled sweetly of herbs and fruit