Regular verb: chase - chased - chased
Simple form | V-ing form |
I must chase you must chase he must chase we must chase you must chase they must chase | I must be chasing you must be chasing he must be chasing we must be chasing you must be chasing they must be chasing |
Perfect | V-ing perfect |
I must have chased you must have chased he must have chased we must have chased you must have chased they must have chased | I must have been chasing you must have been chasing he must have been chasing we must have been chasing you must have been chasing they must have been chasing |
Simple form | V-ing form |
I mustn't chase you mustn't chase he mustn't chase we mustn't chase you mustn't chase they mustn't chase | I mustn't be chasing you mustn't be chasing he mustn't be chasing we mustn't be chasing you mustn't be chasing they mustn't be chasing |
Perfect | V-ing perfect |
I mustn't have chased you mustn't have chased he mustn't have chased we mustn't have chased you mustn't have chased they mustn't have chased | I mustn't have been chasing you mustn't have been chasing he mustn't have been chasing we mustn't have been chasing you mustn't have been chasing they mustn't have been chasing |
Simple form | V-ing form |
must I chase? must you chase? must he chase? must we chase? must you chase? must they chase? | must I be chasing? must you be chasing? must he be chasing? must we be chasing? must you be chasing? must they be chasing? |
Perfect | V-ing perfect |
must I have chased? must you have chased? must he have chased? must we have chased? must you have chased? must they have chased? | must I have been chasing? must you have been chasing? must he have been chasing? must we have been chasing? must you have been chasing? must they have been chasing? |
Simple form | V-ing form |
mustn't I chase? mustn't you chase? mustn't he chase? mustn't we chase? mustn't you chase? mustn't they chase? | mustn't I be chasing? mustn't you be chasing? mustn't he be chasing? mustn't we be chasing? mustn't you be chasing? mustn't they be chasing? |
Perfect | V-ing perfect |
mustn't I have chased? mustn't you have chased? mustn't he have chased? mustn't we have chased? mustn't you have chased? mustn't they have chased? | mustn't I have been chasing? mustn't you have been chasing? mustn't he have been chasing? mustn't we have been chasing? mustn't you have been chasing? mustn't they have been chasing? |