Verbo regular: sum - summed - summed
Forma simple | Forma con V-ing |
I can sum you can sum he can sum we can sum you can sum they can sum | I can be summing you can be summing he can be summing we can be summing you can be summing they can be summing |
Perfecto | Perfecto con V-ing |
I can have summed you can have summed he can have summed we can have summed you can have summed they can have summed | I can have been summing you can have been summing he can have been summing we can have been summing you can have been summing they can have been summing |
Forma simple | Forma con V-ing |
I can't sum you can't sum he can't sum we can't sum you can't sum they can't sum | I can't be summing you can't be summing he can't be summing we can't be summing you can't be summing they can't be summing |
Perfecto | Perfecto con V-ing |
I can't have summed you can't have summed he can't have summed we can't have summed you can't have summed they can't have summed | I can't have been summing you can't have been summing he can't have been summing we can't have been summing you can't have been summing they can't have been summing |
Forma simple | Forma con V-ing |
can I sum? can you sum? can he sum? can we sum? can you sum? can they sum? | can I be summing? can you be summing? can he be summing? can we be summing? can you be summing? can they be summing? |
Perfecto | Perfecto con V-ing |
can I have summed? can you have summed? can he have summed? can we have summed? can you have summed? can they have summed? | can I have been summing? can you have been summing? can he have been summing? can we have been summing? can you have been summing? can they have been summing? |
Forma simple | Forma con V-ing |
can't I sum? can't you sum? can't he sum? can't we sum? can't you sum? can't they sum? | can't I be summing? can't you be summing? can't he be summing? can't we be summing? can't you be summing? can't they be summing? |
Perfecto | Perfecto con V-ing |
can't I have summed? can't you have summed? can't he have summed? can't we have summed? can't you have summed? can't they have summed? | can't I have been summing? can't you have been summing? can't he have been summing? can't we have been summing? can't you have been summing? can't they have been summing? |