| Play | Key Line | Modern Text | Original Text |
| The Comedy of Errors | CE IV.iv.73 | Certes she did. The kitchen vestal scorned you. | Certis she did, the kitchin vestall scorn'd you. |
| Henry VIII | H8 I.i.48 | One, certes, that promises no element | One certes, that promises no Element |
| Love's Labour's Lost | LLL IV.ii.160 | And, certes, the text most infallibly | And certes the text most infallibly |
| Othello | Oth I.i.16 | Non-suits my mediators. For, ‘ Certes,’ says he, | Non-suites my Mediators. For certes, saies he, |
| The Tempest | Tem III.iii.31 | For certes, these are people of the island – | (For certes, these are people of the Island) |