Marginalized constraints for the 60 HI parameters and 68% credible intervals for BINGO + Planck likelihood. The dashed black lines indicate the truth (fiducial) value of the parameters. In Panels 8a and 8b, we show the constraints for the Ω_HIb_HI and b_HI for three different realizations of the pure cosmological signal. In Panels 8c and 8d we show the constraints for three cases: simulation of the pure cosmological 21 cm signal (blue), simulation including white noise (orange), simulation including white noise and foreground removal (green). We find that we can recover the fiducial values within 1 ∼ 2σ for most of the parameters. This result shows the potential of BINGO to constrain HI history.