Regular verb: crack - cracked - cracked
Simple form | V-ing form |
I could crack you could crack she could crack we could crack you could crack they could crack | I could be cracking you could be cracking she could be cracking we could be cracking you could be cracking they could be cracking |
Perfect | V-ing perfect |
I could have cracked you could have cracked she could have cracked we could have cracked you could have cracked they could have cracked | I could have been cracking you could have been cracking she could have been cracking we could have been cracking you could have been cracking they could have been cracking |
Simple form | V-ing form |
I could not crack you could not crack she could not crack we could not crack you could not crack they could not crack | I could not be cracking you could not be cracking she could not be cracking we could not be cracking you could not be cracking they could not be cracking |
Perfect | V-ing perfect |
I could not have cracked you could not have cracked she could not have cracked we could not have cracked you could not have cracked they could not have cracked | I could not have been cracking you could not have been cracking she could not have been cracking we could not have been cracking you could not have been cracking they could not have been cracking |
Simple form | V-ing form |
could I crack? could you crack? could she crack? could we crack? could you crack? could they crack? | could I be cracking? could you be cracking? could she be cracking? could we be cracking? could you be cracking? could they be cracking? |
Perfect | V-ing perfect |
could I have cracked? could you have cracked? could she have cracked? could we have cracked? could you have cracked? could they have cracked? | could I have been cracking? could you have been cracking? could she have been cracking? could we have been cracking? could you have been cracking? could they have been cracking? |
Simple form | V-ing form |
could I not crack? could you not crack? could she not crack? could we not crack? could you not crack? could they not crack? | could I not be cracking? could you not be cracking? could she not be cracking? could we not be cracking? could you not be cracking? could they not be cracking? |
Perfect | V-ing perfect |
could I not have cracked? could you not have cracked? could she not have cracked? could we not have cracked? could you not have cracked? could they not have cracked? | could I not have been cracking? could you not have been cracking? could she not have been cracking? could we not have been cracking? could you not have been cracking? could they not have been cracking? |