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