| Play | Key Line | Modern Text | Original Text |
| Hamlet | Ham III.iv.37 | If it be made of penetrable stuff, | If it be made of penetrable stuffe; |
| King Edward III | E3 II.ii.63 | In a deep march of penetrable groans; | In a deepe march of penytrable grones, |
| The Merchant of Venice | MV III.iii.18 | It is the most impenetrable cur | It is the most impenetrable curre |
| Richard III | R3 III.vii.224 | But penetrable to your kind entreaties, | But penetrable to your kinde entreaties, |