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