Regular verb: refuel - refuelled - refuelled
Simple form | V-ing form |
I must refuel you must refuel she must refuel we must refuel you must refuel they must refuel | I must be refuelling you must be refuelling she must be refuelling we must be refuelling you must be refuelling they must be refuelling |
Perfect | V-ing perfect |
I must have refuelled you must have refuelled she must have refuelled we must have refuelled you must have refuelled they must have refuelled | I must have been refuelling you must have been refuelling she must have been refuelling we must have been refuelling you must have been refuelling they must have been refuelling |
Simple form | V-ing form |
I mustn't refuel you mustn't refuel she mustn't refuel we mustn't refuel you mustn't refuel they mustn't refuel | I mustn't be refuelling you mustn't be refuelling she mustn't be refuelling we mustn't be refuelling you mustn't be refuelling they mustn't be refuelling |
Perfect | V-ing perfect |
I mustn't have refuelled you mustn't have refuelled she mustn't have refuelled we mustn't have refuelled you mustn't have refuelled they mustn't have refuelled | I mustn't have been refuelling you mustn't have been refuelling she mustn't have been refuelling we mustn't have been refuelling you mustn't have been refuelling they mustn't have been refuelling |
Simple form | V-ing form |
must I refuel? must you refuel? must she refuel? must we refuel? must you refuel? must they refuel? | must I be refuelling? must you be refuelling? must she be refuelling? must we be refuelling? must you be refuelling? must they be refuelling? |
Perfect | V-ing perfect |
must I have refuelled? must you have refuelled? must she have refuelled? must we have refuelled? must you have refuelled? must they have refuelled? | must I have been refuelling? must you have been refuelling? must she have been refuelling? must we have been refuelling? must you have been refuelling? must they have been refuelling? |
Simple form | V-ing form |
mustn't I refuel? mustn't you refuel? mustn't she refuel? mustn't we refuel? mustn't you refuel? mustn't they refuel? | mustn't I be refuelling? mustn't you be refuelling? mustn't she be refuelling? mustn't we be refuelling? mustn't you be refuelling? mustn't they be refuelling? |
Perfect | V-ing perfect |
mustn't I have refuelled? mustn't you have refuelled? mustn't she have refuelled? mustn't we have refuelled? mustn't you have refuelled? mustn't they have refuelled? | mustn't I have been refuelling? mustn't you have been refuelling? mustn't she have been refuelling? mustn't we have been refuelling? mustn't you have been refuelling? mustn't they have been refuelling? |