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