Regular verb: doctor - doctored - doctored
Simple form | V-ing form |
I could doctor you could doctor he could doctor we could doctor you could doctor they could doctor | I could be doctoring you could be doctoring he could be doctoring we could be doctoring you could be doctoring they could be doctoring |
Perfect | V-ing perfect |
I could have doctored you could have doctored he could have doctored we could have doctored you could have doctored they could have doctored | I could have been doctoring you could have been doctoring he could have been doctoring we could have been doctoring you could have been doctoring they could have been doctoring |
Simple form | V-ing form |
I could not doctor you could not doctor he could not doctor we could not doctor you could not doctor they could not doctor | I could not be doctoring you could not be doctoring he could not be doctoring we could not be doctoring you could not be doctoring they could not be doctoring |
Perfect | V-ing perfect |
I could not have doctored you could not have doctored he could not have doctored we could not have doctored you could not have doctored they could not have doctored | I could not have been doctoring you could not have been doctoring he could not have been doctoring we could not have been doctoring you could not have been doctoring they could not have been doctoring |
Simple form | V-ing form |
could I doctor? could you doctor? could he doctor? could we doctor? could you doctor? could they doctor? | could I be doctoring? could you be doctoring? could he be doctoring? could we be doctoring? could you be doctoring? could they be doctoring? |
Perfect | V-ing perfect |
could I have doctored? could you have doctored? could he have doctored? could we have doctored? could you have doctored? could they have doctored? | could I have been doctoring? could you have been doctoring? could he have been doctoring? could we have been doctoring? could you have been doctoring? could they have been doctoring? |
Simple form | V-ing form |
could I not doctor? could you not doctor? could he not doctor? could we not doctor? could you not doctor? could they not doctor? | could I not be doctoring? could you not be doctoring? could he not be doctoring? could we not be doctoring? could you not be doctoring? could they not be doctoring? |
Perfect | V-ing perfect |
could I not have doctored? could you not have doctored? could he not have doctored? could we not have doctored? could you not have doctored? could they not have doctored? | could I not have been doctoring? could you not have been doctoring? could he not have been doctoring? could we not have been doctoring? could you not have been doctoring? could they not have been doctoring? |