Irregular verb: buy - bought - bought
Simple form | V-ing form |
I must buy you must buy he must buy we must buy you must buy they must buy | I must be buying you must be buying he must be buying we must be buying you must be buying they must be buying |
Perfect | V-ing perfect |
I must have bought you must have bought he must have bought we must have bought you must have bought they must have bought | I must have been buying you must have been buying he must have been buying we must have been buying you must have been buying they must have been buying |
Simple form | V-ing form |
I mustn't buy you mustn't buy he mustn't buy we mustn't buy you mustn't buy they mustn't buy | I mustn't be buying you mustn't be buying he mustn't be buying we mustn't be buying you mustn't be buying they mustn't be buying |
Perfect | V-ing perfect |
I mustn't have bought you mustn't have bought he mustn't have bought we mustn't have bought you mustn't have bought they mustn't have bought | I mustn't have been buying you mustn't have been buying he mustn't have been buying we mustn't have been buying you mustn't have been buying they mustn't have been buying |
Simple form | V-ing form |
must I buy? must you buy? must he buy? must we buy? must you buy? must they buy? | must I be buying? must you be buying? must he be buying? must we be buying? must you be buying? must they be buying? |
Perfect | V-ing perfect |
must I have bought? must you have bought? must he have bought? must we have bought? must you have bought? must they have bought? | must I have been buying? must you have been buying? must he have been buying? must we have been buying? must you have been buying? must they have been buying? |
Simple form | V-ing form |
mustn't I buy? mustn't you buy? mustn't he buy? mustn't we buy? mustn't you buy? mustn't they buy? | mustn't I be buying? mustn't you be buying? mustn't he be buying? mustn't we be buying? mustn't you be buying? mustn't they be buying? |
Perfect | V-ing perfect |
mustn't I have bought? mustn't you have bought? mustn't he have bought? mustn't we have bought? mustn't you have bought? mustn't they have bought? | mustn't I have been buying? mustn't you have been buying? mustn't he have been buying? mustn't we have been buying? mustn't you have been buying? mustn't they have been buying? |