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