Regular verb: pierce - pierced - pierced
Simple form | V-ing form |
I could pierce you could pierce he could pierce we could pierce you could pierce they could pierce | I could be piercing you could be piercing he could be piercing we could be piercing you could be piercing they could be piercing |
Perfect | V-ing perfect |
I could have pierced you could have pierced he could have pierced we could have pierced you could have pierced they could have pierced | I could have been piercing you could have been piercing he could have been piercing we could have been piercing you could have been piercing they could have been piercing |
Simple form | V-ing form |
I could not pierce you could not pierce he could not pierce we could not pierce you could not pierce they could not pierce | I could not be piercing you could not be piercing he could not be piercing we could not be piercing you could not be piercing they could not be piercing |
Perfect | V-ing perfect |
I could not have pierced you could not have pierced he could not have pierced we could not have pierced you could not have pierced they could not have pierced | I could not have been piercing you could not have been piercing he could not have been piercing we could not have been piercing you could not have been piercing they could not have been piercing |
Simple form | V-ing form |
could I pierce? could you pierce? could he pierce? could we pierce? could you pierce? could they pierce? | could I be piercing? could you be piercing? could he be piercing? could we be piercing? could you be piercing? could they be piercing? |
Perfect | V-ing perfect |
could I have pierced? could you have pierced? could he have pierced? could we have pierced? could you have pierced? could they have pierced? | could I have been piercing? could you have been piercing? could he have been piercing? could we have been piercing? could you have been piercing? could they have been piercing? |
Simple form | V-ing form |
could I not pierce? could you not pierce? could he not pierce? could we not pierce? could you not pierce? could they not pierce? | could I not be piercing? could you not be piercing? could he not be piercing? could we not be piercing? could you not be piercing? could they not be piercing? |
Perfect | V-ing perfect |
could I not have pierced? could you not have pierced? could he not have pierced? could we not have pierced? could you not have pierced? could they not have pierced? | could I not have been piercing? could you not have been piercing? could he not have been piercing? could we not have been piercing? could you not have been piercing? could they not have been piercing? |