
Regular verb: lessen - lessened - lessened
Simple form | V-ing form | 
| I'll lessen you'll lessen she'll lessen we'll lessen you'll lessen they'll lessen  | I'll be lessening you'll be lessening she'll be lessening we'll be lessening you'll be lessening they'll be lessening  | 
Perfect | V-ing perfect | 
| I'll have lessened you'll have lessened she'll have lessened we'll have lessened you'll have lessened they'll have lessened  | I'll have been lessening you'll have been lessening she'll have been lessening we'll have been lessening you'll have been lessening they'll have been lessening  | 
Simple form | V-ing form | 
| I shan't lessen you shan't lessen she shan't lessen we shan't lessen you shan't lessen they shan't lessen  | I shan't be lessening you shan't be lessening she shan't be lessening we shan't be lessening you shan't be lessening they shan't be lessening  | 
Perfect | V-ing perfect | 
| I shan't have lessened you shan't have lessened she shan't have lessened we shan't have lessened you shan't have lessened they shan't have lessened  | I shan't have been lessening you shan't have been lessening she shan't have been lessening we shan't have been lessening you shan't have been lessening they shan't have been lessening  | 
Simple form | V-ing form | 
| shall I lessen? shall you lessen? shall she lessen? shall we lessen? shall you lessen? shall they lessen?  | shall I be lessening? shall you be lessening? shall she be lessening? shall we be lessening? shall you be lessening? shall they be lessening?  | 
Perfect | V-ing perfect | 
| shall I have lessened? shall you have lessened? shall she have lessened? shall we have lessened? shall you have lessened? shall they have lessened?  | shall I have been lessening? shall you have been lessening? shall she have been lessening? shall we have been lessening? shall you have been lessening? shall they have been lessening?  | 
Simple form | V-ing form | 
| shan't I lessen? shan't you lessen? shan't she lessen? shan't we lessen? shan't you lessen? shan't they lessen?  | shan't I be lessening? shan't you be lessening? shan't she be lessening? shan't we be lessening? shan't you be lessening? shan't they be lessening?  | 
Perfect | V-ing perfect | 
| shan't I have lessened? shan't you have lessened? shan't she have lessened? shan't we have lessened? shan't you have lessened? shan't they have lessened?  | shan't I have been lessening? shan't you have been lessening? shan't she have been lessening? shan't we have been lessening? shan't you have been lessening? shan't they have been lessening?  |