Complex sentence: Once they are gone, Gremio and Tranio (disguised as Lucentio) formally bid for Bianca, with Tranio easily outbidding Gremio; however, in his zeal to win, he promises much more than Lucentio actually possesses.
Split into simpler sentences: Once they are gone, Gremio and Tranio (disguised as Lucentio) formally bid for Bianca, with Tranio easily outbidding Gremio. However, in his zeal to win, he promises much more than Lucentio actually possesses.