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