
Verbo regular: alter - altered - altered
Forma simple | Forma con V-ing | 
| I'll alter you'll alter he'll alter we'll alter you'll alter they'll alter  | I'll be altering you'll be altering he'll be altering we'll be altering you'll be altering they'll be altering  | 
Perfecto | Perfecto con V-ing | 
| I'll have altered you'll have altered he'll have altered we'll have altered you'll have altered they'll have altered  | I'll have been altering you'll have been altering he'll have been altering we'll have been altering you'll have been altering they'll have been altering  | 
Forma simple | Forma con V-ing | 
| I shan't alter you shan't alter he shan't alter we shan't alter you shan't alter they shan't alter  | I shan't be altering you shan't be altering he shan't be altering we shan't be altering you shan't be altering they shan't be altering  | 
Perfecto | Perfecto con V-ing | 
| I shan't have altered you shan't have altered he shan't have altered we shan't have altered you shan't have altered they shan't have altered  | I shan't have been altering you shan't have been altering he shan't have been altering we shan't have been altering you shan't have been altering they shan't have been altering  | 
Forma simple | Forma con V-ing | 
| shall I alter? shall you alter? shall he alter? shall we alter? shall you alter? shall they alter?  | shall I be altering? shall you be altering? shall he be altering? shall we be altering? shall you be altering? shall they be altering?  | 
Perfecto | Perfecto con V-ing | 
| shall I have altered? shall you have altered? shall he have altered? shall we have altered? shall you have altered? shall they have altered?  | shall I have been altering? shall you have been altering? shall he have been altering? shall we have been altering? shall you have been altering? shall they have been altering?  | 
Forma simple | Forma con V-ing | 
| shan't I alter? shan't you alter? shan't he alter? shan't we alter? shan't you alter? shan't they alter?  | shan't I be altering? shan't you be altering? shan't he be altering? shan't we be altering? shan't you be altering? shan't they be altering?  | 
Perfecto | Perfecto con V-ing | 
| shan't I have altered? shan't you have altered? shan't he have altered? shan't we have altered? shan't you have altered? shan't they have altered?  | shan't I have been altering? shan't you have been altering? shan't he have been altering? shan't we have been altering? shan't you have been altering? shan't they have been altering?  |