| fail(verb, break, decline, fall, offend) |
| err(verb, fall, slip, mistake, stumble) |
| miscarry(verb, decline, fall, fail, slip) |
| go astray(verb, expression, decline, fall, fail) |
| misfire(verb, fail, fade, fatigue, miscarry) |
| slip(verb, decline, fall, fail, mistake) |
| abort(verb, decline, fall, fail, slip) |
| fizzle(verb, decline, fall, fail, slip) |
| lapse(verb, fall, slip, stumble, skip) |
| miscalculate(verb, fall, slip, mistake, stumble) |
| transgress(verb, fail, offend, stumble, stray) |
| backslide(verb, decline, fall, fail, slip) |
| break down(verb, expression, break, decline, fall) |
| fall(verb, decline, fail, slip, bomb) |
| fall short(verb, expression, decline, fall, fail) |
| fall through(verb, expression, decline, fall, fail) |
| flop(verb, decline, fall, fail, slip) |
| founder(verb, decline, fall, fail, slip) |
| slip up(verb, expression, fall, stumble, stray) |
| be in error(verb, expression, idiom, fall, blow) |