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