Verbo regular: contribute - contributed - contributed
Forma simple | Forma con V-ing |
I must contribute you must contribute she must contribute we must contribute you must contribute they must contribute | I must be contributing you must be contributing she must be contributing we must be contributing you must be contributing they must be contributing |
Perfecto | Perfecto con V-ing |
I must have contributed you must have contributed she must have contributed we must have contributed you must have contributed they must have contributed | I must have been contributing you must have been contributing she must have been contributing we must have been contributing you must have been contributing they must have been contributing |
Forma simple | Forma con V-ing |
I mustn't contribute you mustn't contribute she mustn't contribute we mustn't contribute you mustn't contribute they mustn't contribute | I mustn't be contributing you mustn't be contributing she mustn't be contributing we mustn't be contributing you mustn't be contributing they mustn't be contributing |
Perfecto | Perfecto con V-ing |
I mustn't have contributed you mustn't have contributed she mustn't have contributed we mustn't have contributed you mustn't have contributed they mustn't have contributed | I mustn't have been contributing you mustn't have been contributing she mustn't have been contributing we mustn't have been contributing you mustn't have been contributing they mustn't have been contributing |
Forma simple | Forma con V-ing |
must I contribute? must you contribute? must she contribute? must we contribute? must you contribute? must they contribute? | must I be contributing? must you be contributing? must she be contributing? must we be contributing? must you be contributing? must they be contributing? |
Perfecto | Perfecto con V-ing |
must I have contributed? must you have contributed? must she have contributed? must we have contributed? must you have contributed? must they have contributed? | must I have been contributing? must you have been contributing? must she have been contributing? must we have been contributing? must you have been contributing? must they have been contributing? |
Forma simple | Forma con V-ing |
mustn't I contribute? mustn't you contribute? mustn't she contribute? mustn't we contribute? mustn't you contribute? mustn't they contribute? | mustn't I be contributing? mustn't you be contributing? mustn't she be contributing? mustn't we be contributing? mustn't you be contributing? mustn't they be contributing? |
Perfecto | Perfecto con V-ing |
mustn't I have contributed? mustn't you have contributed? mustn't she have contributed? mustn't we have contributed? mustn't you have contributed? mustn't they have contributed? | mustn't I have been contributing? mustn't you have been contributing? mustn't she have been contributing? mustn't we have been contributing? mustn't you have been contributing? mustn't they have been contributing? |