regression method regression methods regression model regression models regression results regression techniques regression testing regression tests regression therapy regression using regression was used regressions regressive regressive tax regret regret a single regret a thing regret any inconvenience regret anything regret asking regret breaking regret bringing regret buying regret can regret choosing regret coming regret doing regret even regret ever regret everything regret for the rest regret getting regret giving regret going regret having regret having done regret he regret helping regret her decision regret i regret i have regret in life regret is i regret is that i regret is that i did regret it regret it for the rest regret it forever regret it if you do regret it later regret it now regret it so regret later regret later on regret leaving regret letting regret losing regret making regret marrying regret meeting regret missing regret my actions regret my choice regret my decision regret not regret not being able regret not doing regret not getting regret not going regret not having regret not taking regret nothing regret now regret over regret saying regret sending regret so regret something regret spending regret staying regret taking regret telling regret that decision regret that he regret that i regret that i did regret that i have regret that i must regret that they regret that we regret that you regret the choice regret the day regret the day you regret the decision regret the fact regret the loss regret the past regret the things