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