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