
Verbo regular: refer - referred - referred
Forma simple | Forma con V-ing | 
| I might refer you might refer he might refer we might refer you might refer they might refer  | I might be referring you might be referring he might be referring we might be referring you might be referring they might be referring  | 
Perfecto | Perfecto con V-ing | 
| I might have referred you might have referred he might have referred we might have referred you might have referred they might have referred  | I might have been referring you might have been referring he might have been referring we might have been referring you might have been referring they might have been referring  | 
Forma simple | Forma con V-ing | 
| I mightn't refer you mightn't refer he mightn't refer we mightn't refer you mightn't refer they mightn't refer  | I mightn't be referring you mightn't be referring he mightn't be referring we mightn't be referring you mightn't be referring they mightn't be referring  | 
Perfecto | Perfecto con V-ing | 
| I mightn't have referred you mightn't have referred he mightn't have referred we mightn't have referred you mightn't have referred they mightn't have referred  | I mightn't have been referring you mightn't have been referring he mightn't have been referring we mightn't have been referring you mightn't have been referring they mightn't have been referring  | 
Forma simple | Forma con V-ing | 
| might I refer? might you refer? might he refer? might we refer? might you refer? might they refer?  | might I be referring? might you be referring? might he be referring? might we be referring? might you be referring? might they be referring?  | 
Perfecto | Perfecto con V-ing | 
| might I have referred? might you have referred? might he have referred? might we have referred? might you have referred? might they have referred?  | might I have been referring? might you have been referring? might he have been referring? might we have been referring? might you have been referring? might they have been referring?  | 
Forma simple | Forma con V-ing | 
| mightn't I refer? mightn't you refer? mightn't he refer? mightn't we refer? mightn't you refer? mightn't they refer?  | mightn't I be referring? mightn't you be referring? mightn't he be referring? mightn't we be referring? mightn't you be referring? mightn't they be referring?  | 
Perfecto | Perfecto con V-ing | 
| mightn't I have referred? mightn't you have referred? mightn't he have referred? mightn't we have referred? mightn't you have referred? mightn't they have referred?  | mightn't I have been referring? mightn't you have been referring? mightn't he have been referring? mightn't we have been referring? mightn't you have been referring? mightn't they have been referring?  |