The Suggestive Mood

The verb "kugenda" -- "to go", like most verbs, can be made in to a command by dropping the initial "ku" leaving "genda" -- "go."  My teacher had referred to this as the imperative mood.  Today he constructed another form -- "ugende" -- for which he could not remember the official term, so he called it the "suggestive mood."  He used it when saying to another speaker "why don't you go..."