| Play | Key Line | Modern Text | Original Text |
| Henry VI Part 3 | 3H6 IV.i.44 | Which He hath given for fence impregnable, | Which he hath giu'n for fence impregnable, |
| Richard II | R2 III.ii.168 | Were brass impregnable; and humoured thus, | Were Brasse impregnable: and humor'd thus, |
| Titus Andronicus | Tit IV.iv.98 | Almost impregnable, his old ears deaf, | Almost Impregnable, his old eares deafe, |