| err(verb, drop, ruin, disregard, trip) |
| blow(verb, drop, disregard, trip, fall) |
| blunder(verb, drop, ruin, disregard, trip) |
| bobble(verb, hesitate, stumble, flop, bungle) |
| flop(verb, trip, slip, struggle, stumble) |
| flounder(verb, fight, struggle, hesitate, stumble) |
| fluff(verb, fall, pause, hesitate, stumble) |
| flummox(verb, trip, slip, stumble, labor) |
| foul up(verb, expression, stumble, flop, stray) |
| fumble(verb, drop, ruin, disregard, trip) |
| go wrong(verb, expression, fall, stumble, stray) |
| goof(verb, fall, stumble, tumble, stray) |
| louse up(verb, expression, stumble, stray, bungle) |
| make a mess of(verb, expression, idiom, stumble, stray) |
| misapprehend(verb, stumble, misconstrue, stray, misunderstand) |
| miscalculate(verb, mistake, stumble, misconstrue, stray) |
| muck up(expression, goof, scrabble, snafued, bollix) |
| muff(verb, drop, ruin, disregard, trip) |
| overlook(verb, drop, disregard, trip, fall) |
| screw up(verb, expression, stumble, flop, stray) |