Present participle; Past participle - teetering - teetered Present - teeter - teeter - teeters - teeter - teeter - teeter Past - teetered - teetered - teetered - teetered - teetered - teetered Future - will teeter - will teeter - will teeter - will teeter - will teeter - will teeter Present conditional - would teeter - would teeter - would teeter - would teeter - would teeter - would teeter Present Perfect - have teetered - have teetered - has teetered - have teetered - have teetered - have teetered Past Perfect - had teetered - had teetered - had teetered - had teetered - had teetered - had teetered Future Perfect - will have teetered - will have teetered - will have teetered - will have teetered - will have teetered - will have teetered Past conditional - would have teetered - would have teetered - would have teetered - would have teetered - would have teetered - would have teetered Imperative - - - teeter - - - - - - - -