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