Regular verb: witness - witnessed - witnessed
Simple form | V-ing form |
I could witness you could witness she could witness we could witness you could witness they could witness | I could be witnessing you could be witnessing she could be witnessing we could be witnessing you could be witnessing they could be witnessing |
Perfect | V-ing perfect |
I could have witnessed you could have witnessed she could have witnessed we could have witnessed you could have witnessed they could have witnessed | I could have been witnessing you could have been witnessing she could have been witnessing we could have been witnessing you could have been witnessing they could have been witnessing |
Simple form | V-ing form |
I couldn't witness you couldn't witness she couldn't witness we couldn't witness you couldn't witness they couldn't witness | I couldn't be witnessing you couldn't be witnessing she couldn't be witnessing we couldn't be witnessing you couldn't be witnessing they couldn't be witnessing |
Perfect | V-ing perfect |
I couldn't have witnessed you couldn't have witnessed she couldn't have witnessed we couldn't have witnessed you couldn't have witnessed they couldn't have witnessed | I couldn't have been witnessing you couldn't have been witnessing she couldn't have been witnessing we couldn't have been witnessing you couldn't have been witnessing they couldn't have been witnessing |
Simple form | V-ing form |
could I witness? could you witness? could she witness? could we witness? could you witness? could they witness? | could I be witnessing? could you be witnessing? could she be witnessing? could we be witnessing? could you be witnessing? could they be witnessing? |
Perfect | V-ing perfect |
could I have witnessed? could you have witnessed? could she have witnessed? could we have witnessed? could you have witnessed? could they have witnessed? | could I have been witnessing? could you have been witnessing? could she have been witnessing? could we have been witnessing? could you have been witnessing? could they have been witnessing? |
Simple form | V-ing form |
couldn't I witness? couldn't you witness? couldn't she witness? couldn't we witness? couldn't you witness? couldn't they witness? | couldn't I be witnessing? couldn't you be witnessing? couldn't she be witnessing? couldn't we be witnessing? couldn't you be witnessing? couldn't they be witnessing? |
Perfect | V-ing perfect |
couldn't I have witnessed? couldn't you have witnessed? couldn't she have witnessed? couldn't we have witnessed? couldn't you have witnessed? couldn't they have witnessed? | couldn't I have been witnessing? couldn't you have been witnessing? couldn't she have been witnessing? couldn't we have been witnessing? couldn't you have been witnessing? couldn't they have been witnessing? |