The phrase from the movie 'House of cards'
Newspaperwoman wanted the man (Underwood) to tell her some info, therefore, she hurries him. And the man (Underwood) told her these words (your tone doesn't inspire me to be very forthcoming)
1) I don't get his message (to be very forthcoming is about her or about her tone)
2) I like this way of using of 'to be'. Could you give me some extra examples with such using of 'to be' verb for conclusive understanding