
Verbo regular: warn - warned - warned
| Presente | Presente contínuo | Pretérito | Preterito contínuo | 
| I warn you warn he warns we warn you warn they warn | I am warning you are warning he is warning we are warning you are warning they are warning | I warned you warned he warned we warned you warned they warned | I was warning you were warning he was warning we were warning you were warning they were warning | 
| Presente perfeito | Presente perfeito contínuo | Mais perfeito | Contínuo mais perfeito | 
| I have warned you have warned he has warned we have warned you have warned they have warned | I have been warning you have been warning he has been warning we have been warning you have been warning they have been warning | I had warned you had warned he had warned we had warned you had warned they had warned | I had been warning you had been warning he had been warning we had been warning you had been warning they had been warning | 
| Futuro | Futuro contínuo | futuro perfeito | futuro perfeito contínuo | 
| I will warn you will warn he will warn we will warn you will warn they will warn | I will be warning you will be warning he will be warning we will be warning you will be warning they will be warning | I will have warned you will have warned he will have warned we will have warned you will have warned they will have warned | I will have been warning you will have been warning he will have been warning we will have been warning you will have been warning they will have been warning | 
| Presente | Presente contínuo | Passado | Passado contínuo | 
| I would warn you would warn he would warn we would warn you would warn they would warn | I would be warning you would be warning he would be warning we would be warning you would be warning they would be warning | I would have warned you would have warned he would have warned we would have warned you would have warned they would have warned | I would have been warning you would have been warning he would have been warning we would have been warning you would have been warning they would have been warning | 
| Infinitivo | Imperativo | 
| Infinitivo | Imperativo | ||
| to warn | warn Let's warn warn | 
| Presente | Passado | ||
| warning | warned |