Regular verb: quicken - quickened - quickened
Simple form | V-ing form |
I could quicken you could quicken he could quicken we could quicken you could quicken they could quicken | I could be quickening you could be quickening he could be quickening we could be quickening you could be quickening they could be quickening |
Perfect | V-ing perfect |
I could have quickened you could have quickened he could have quickened we could have quickened you could have quickened they could have quickened | I could have been quickening you could have been quickening he could have been quickening we could have been quickening you could have been quickening they could have been quickening |
Simple form | V-ing form |
I could not quicken you could not quicken he could not quicken we could not quicken you could not quicken they could not quicken | I could not be quickening you could not be quickening he could not be quickening we could not be quickening you could not be quickening they could not be quickening |
Perfect | V-ing perfect |
I could not have quickened you could not have quickened he could not have quickened we could not have quickened you could not have quickened they could not have quickened | I could not have been quickening you could not have been quickening he could not have been quickening we could not have been quickening you could not have been quickening they could not have been quickening |
Simple form | V-ing form |
could I quicken? could you quicken? could he quicken? could we quicken? could you quicken? could they quicken? | could I be quickening? could you be quickening? could he be quickening? could we be quickening? could you be quickening? could they be quickening? |
Perfect | V-ing perfect |
could I have quickened? could you have quickened? could he have quickened? could we have quickened? could you have quickened? could they have quickened? | could I have been quickening? could you have been quickening? could he have been quickening? could we have been quickening? could you have been quickening? could they have been quickening? |
Simple form | V-ing form |
could I not quicken? could you not quicken? could he not quicken? could we not quicken? could you not quicken? could they not quicken? | could I not be quickening? could you not be quickening? could he not be quickening? could we not be quickening? could you not be quickening? could they not be quickening? |
Perfect | V-ing perfect |
could I not have quickened? could you not have quickened? could he not have quickened? could we not have quickened? could you not have quickened? could they not have quickened? | could I not have been quickening? could you not have been quickening? could he not have been quickening? could we not have been quickening? could you not have been quickening? could they not have been quickening? |