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