| Infinitivo | Participio | Gerundio | Translation |
|---|---|---|---|
| comprar | comprado | comprando | buy, shopping |
| comprender | comprendido | comprenso | understand |
| comprimir | comprimido | compreso | compressed, compress, compression |
| comprobar | comprobado | comprobando | check, verify, checking |
| comprometer | comprometido | comprometiendo | compromise, commit, endanger |
| comulgar | comulgado | comulgando | commune |
| comunicar | comunicado | comunicando | communicate |
| concebir | concebido | concibiendo | conceive, think, conceiving |
| conceder | concedido | concediendo | grant, give, issue |
| concentrar | concentrado | concentrando | concentrate, concentrated, concentration |
| concernir | concernido | concerniendo | - |
| concertar | concertado | concertando | arrange |
| concienciar | concienciado | concienciando | - |
| conciliar | conciliado | conciliando | reconcile, fall asleep, conciliate |
| concluir | concluido | concluso | conclude, end |
| concordar | concordado | concordando | - |
| concretar | concretado | concretando | - |
| concretizar | concretizado | concretizando | - |
| concurrir | concurrido | concurriendo | - |
| condenar | condenado | condenando | condemn, convict, doomed |