
Verbo regular: harm - harmed - harmed
Forma simple | Forma con V-ing | 
| I could harm you could harm he could harm we could harm you could harm they could harm  | I could be harming you could be harming he could be harming we could be harming you could be harming they could be harming  | 
Perfecto | Perfecto con V-ing | 
| I could have harmed you could have harmed he could have harmed we could have harmed you could have harmed they could have harmed  | I could have been harming you could have been harming he could have been harming we could have been harming you could have been harming they could have been harming  | 
Forma simple | Forma con V-ing | 
| I couldn't harm you couldn't harm he couldn't harm we couldn't harm you couldn't harm they couldn't harm  | I couldn't be harming you couldn't be harming he couldn't be harming we couldn't be harming you couldn't be harming they couldn't be harming  | 
Perfecto | Perfecto con V-ing | 
| I couldn't have harmed you couldn't have harmed he couldn't have harmed we couldn't have harmed you couldn't have harmed they couldn't have harmed  | I couldn't have been harming you couldn't have been harming he couldn't have been harming we couldn't have been harming you couldn't have been harming they couldn't have been harming  | 
Forma simple | Forma con V-ing | 
| could I harm? could you harm? could he harm? could we harm? could you harm? could they harm?  | could I be harming? could you be harming? could he be harming? could we be harming? could you be harming? could they be harming?  | 
Perfecto | Perfecto con V-ing | 
| could I have harmed? could you have harmed? could he have harmed? could we have harmed? could you have harmed? could they have harmed?  | could I have been harming? could you have been harming? could he have been harming? could we have been harming? could you have been harming? could they have been harming?  | 
Forma simple | Forma con V-ing | 
| couldn't I harm? couldn't you harm? couldn't he harm? couldn't we harm? couldn't you harm? couldn't they harm?  | couldn't I be harming? couldn't you be harming? couldn't he be harming? couldn't we be harming? couldn't you be harming? couldn't they be harming?  | 
Perfecto | Perfecto con V-ing | 
| couldn't I have harmed? couldn't you have harmed? couldn't he have harmed? couldn't we have harmed? couldn't you have harmed? couldn't they have harmed?  | couldn't I have been harming? couldn't you have been harming? couldn't he have been harming? couldn't we have been harming? couldn't you have been harming? couldn't they have been harming?  |