Regular verb: erect - erected - erected
Simple form | V-ing form |
I could erect you could erect he could erect we could erect you could erect they could erect | I could be erecting you could be erecting he could be erecting we could be erecting you could be erecting they could be erecting |
Perfect | V-ing perfect |
I could have erected you could have erected he could have erected we could have erected you could have erected they could have erected | I could have been erecting you could have been erecting he could have been erecting we could have been erecting you could have been erecting they could have been erecting |
Simple form | V-ing form |
I couldn't erect you couldn't erect he couldn't erect we couldn't erect you couldn't erect they couldn't erect | I couldn't be erecting you couldn't be erecting he couldn't be erecting we couldn't be erecting you couldn't be erecting they couldn't be erecting |
Perfect | V-ing perfect |
I couldn't have erected you couldn't have erected he couldn't have erected we couldn't have erected you couldn't have erected they couldn't have erected | I couldn't have been erecting you couldn't have been erecting he couldn't have been erecting we couldn't have been erecting you couldn't have been erecting they couldn't have been erecting |
Simple form | V-ing form |
could I erect? could you erect? could he erect? could we erect? could you erect? could they erect? | could I be erecting? could you be erecting? could he be erecting? could we be erecting? could you be erecting? could they be erecting? |
Perfect | V-ing perfect |
could I have erected? could you have erected? could he have erected? could we have erected? could you have erected? could they have erected? | could I have been erecting? could you have been erecting? could he have been erecting? could we have been erecting? could you have been erecting? could they have been erecting? |
Simple form | V-ing form |
couldn't I erect? couldn't you erect? couldn't he erect? couldn't we erect? couldn't you erect? couldn't they erect? | couldn't I be erecting? couldn't you be erecting? couldn't he be erecting? couldn't we be erecting? couldn't you be erecting? couldn't they be erecting? |
Perfect | V-ing perfect |
couldn't I have erected? couldn't you have erected? couldn't he have erected? couldn't we have erected? couldn't you have erected? couldn't they have erected? | couldn't I have been erecting? couldn't you have been erecting? couldn't he have been erecting? couldn't we have been erecting? couldn't you have been erecting? couldn't they have been erecting? |