hayan olfateado
-they/you have sniffed
Antepresente de subjuntivo para el sujetoellos/ellas/ustedesdel verboolfatear.

olfatear

Una vez que se hayan olfateado los unos a los otros... todos tratarán de maravilla a su pobre amigo.
Once they've all had a good sniff of each other... they'll all get along famously with your poor friend.
Palabra del día
la canela