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