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