Regular verb: fertilize - fertilized - fertilized
Simple form | V-ing form |
I could fertilize you could fertilize he could fertilize we could fertilize you could fertilize they could fertilize | I could be fertilizing you could be fertilizing he 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 he 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 he 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 could not fertilize you could not fertilize he could not fertilize we could not fertilize you could not fertilize they could not fertilize | I could not be fertilizing you could not be fertilizing he could not be fertilizing we could not be fertilizing you could not be fertilizing they could not be fertilizing |
Perfect | V-ing perfect |
I could not have fertilized you could not have fertilized he could not have fertilized we could not have fertilized you could not have fertilized they could not have fertilized | I could not have been fertilizing you could not have been fertilizing he could not have been fertilizing we could not have been fertilizing you could not have been fertilizing they could not have been fertilizing |
Simple form | V-ing form |
could I fertilize? could you fertilize? could he fertilize? could we fertilize? could you fertilize? could they fertilize? | could I be fertilizing? could you be fertilizing? could he 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 he 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 he have been fertilizing? could we have been fertilizing? could you have been fertilizing? could they have been fertilizing? |
Simple form | V-ing form |
could I not fertilize? could you not fertilize? could he not fertilize? could we not fertilize? could you not fertilize? could they not fertilize? | could I not be fertilizing? could you not be fertilizing? could he not be fertilizing? could we not be fertilizing? could you not be fertilizing? could they not be fertilizing? |
Perfect | V-ing perfect |
could I not have fertilized? could you not have fertilized? could he not have fertilized? could we not have fertilized? could you not have fertilized? could they not have fertilized? | could I not have been fertilizing? could you not have been fertilizing? could he not have been fertilizing? could we not have been fertilizing? could you not have been fertilizing? could they not have been fertilizing? |