| singular | plural |
| Infinitive | | |
| timbrar | |
| presente de indicativo | | |
| 1 | timbro | timbramos |
| 2 | timbras | timbráis |
| 3 | timbra | timbran |
| pretérito imperfecto | | |
| 1 | timbraba | timbrábamos |
| 2 | timbrabas | timbrabais |
| 3 | timbraba | timbraban |
| pretérito perfecto simple | | |
| 1 | timbré | timbramos |
| 2 | timbraste | timbrasteis |
| 3 | timbró | timbraron |
| futuro simple | | |
| 1 | timbraré | timbraremos |
| 2 | timbrarás | timbraréis |
| 3 | timbrará | timbrarán |
| condicional simple | | |
| 1 | timbraría | timbraríamos |
| 2 | timbrarías | timbraríais |
| 3 | timbraría | timbrarían |
| presente de subjunctivo | | |
| 1 | timbre | timbremos |
| 2 | timbres | timbréis |
| 3 | timbre | timbren |
| pretérito imp. de subjunctivo I | | |
| 1 | timbrara | timbráramos |
| 2 | timbraras | timbrarais |
| 3 | timbrara | timbraran |
| pretérito imp. de subjunctivo II | | |
| 1 | timbrase | timbrásemos |
| 2 | timbrases | timbraseis |
| 3 | timbrase | timbrasen |
| futuro imp. de subjunctivo | | |
| 1 | timbrare | timbráremos |
| 2 | timbrares | timbrareis |
| 3 | timbrare | timbraren |
| imperativo | | |
| 2 | timbra | timbrad |
| gerundio | | |
| timbrando | |
| participio pasivo | | |
| masculine | timbrado | timbrados |
| femininine | timbrada | timbradas |
