Verbo regular: change - changed - changed
Forma simple | Forma con V-ing |
I could change you could change she could change we could change you could change they could change | I could be changing you could be changing she could be changing we could be changing you could be changing they could be changing |
Perfecto | Perfecto con V-ing |
I could have changed you could have changed she could have changed we could have changed you could have changed they could have changed | I could have been changing you could have been changing she could have been changing we could have been changing you could have been changing they could have been changing |
Forma simple | Forma con V-ing |
I couldn't change you couldn't change she couldn't change we couldn't change you couldn't change they couldn't change | I couldn't be changing you couldn't be changing she couldn't be changing we couldn't be changing you couldn't be changing they couldn't be changing |
Perfecto | Perfecto con V-ing |
I couldn't have changed you couldn't have changed she couldn't have changed we couldn't have changed you couldn't have changed they couldn't have changed | I couldn't have been changing you couldn't have been changing she couldn't have been changing we couldn't have been changing you couldn't have been changing they couldn't have been changing |
Forma simple | Forma con V-ing |
could I change? could you change? could she change? could we change? could you change? could they change? | could I be changing? could you be changing? could she be changing? could we be changing? could you be changing? could they be changing? |
Perfecto | Perfecto con V-ing |
could I have changed? could you have changed? could she have changed? could we have changed? could you have changed? could they have changed? | could I have been changing? could you have been changing? could she have been changing? could we have been changing? could you have been changing? could they have been changing? |
Forma simple | Forma con V-ing |
couldn't I change? couldn't you change? couldn't she change? couldn't we change? couldn't you change? couldn't they change? | couldn't I be changing? couldn't you be changing? couldn't she be changing? couldn't we be changing? couldn't you be changing? couldn't they be changing? |
Perfecto | Perfecto con V-ing |
couldn't I have changed? couldn't you have changed? couldn't she have changed? couldn't we have changed? couldn't you have changed? couldn't they have changed? | couldn't I have been changing? couldn't you have been changing? couldn't she have been changing? couldn't we have been changing? couldn't you have been changing? couldn't they have been changing? |