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