can·not 
/ˈkænɑt, kəˈnɑ:t, Brit ˈkænət/
/ˈkænɑt, kəˈnɑ:t, Brit ˈkænət/ — used as the negative form of can ▪ We cannot [=can't] allow that to happen. ▪ I cannot [=can't] believe that he would do such a thing.
usage In speech, can't is much more common than cannot. In formal writing, cannot is much more common than can't.
