Verbe régulier : preascertain - preascertained - preascertained
Forme simple | Forme en V-ing |
I must preascertain you must preascertain she must preascertain we must preascertain you must preascertain they must preascertain | I must be preascertaining you must be preascertaining she must be preascertaining we must be preascertaining you must be preascertaining they must be preascertaining |
Perfect | Perfect en V-ing |
I must have preascertained you must have preascertained she must have preascertained we must have preascertained you must have preascertained they must have preascertained | I must have been preascertaining you must have been preascertaining she must have been preascertaining we must have been preascertaining you must have been preascertaining they must have been preascertaining |
Forme simple | Forme en V-ing |
I mustn't preascertain you mustn't preascertain she mustn't preascertain we mustn't preascertain you mustn't preascertain they mustn't preascertain | I mustn't be preascertaining you mustn't be preascertaining she mustn't be preascertaining we mustn't be preascertaining you mustn't be preascertaining they mustn't be preascertaining |
Perfect | Perfect en V-ing |
I mustn't have preascertained you mustn't have preascertained she mustn't have preascertained we mustn't have preascertained you mustn't have preascertained they mustn't have preascertained | I mustn't have been preascertaining you mustn't have been preascertaining she mustn't have been preascertaining we mustn't have been preascertaining you mustn't have been preascertaining they mustn't have been preascertaining |
Forme simple | Forme en V-ing |
must I preascertain? must you preascertain? must she preascertain? must we preascertain? must you preascertain? must they preascertain? | must I be preascertaining? must you be preascertaining? must she be preascertaining? must we be preascertaining? must you be preascertaining? must they be preascertaining? |
Perfect | Perfect en V-ing |
must I have preascertained? must you have preascertained? must she have preascertained? must we have preascertained? must you have preascertained? must they have preascertained? | must I have been preascertaining? must you have been preascertaining? must she have been preascertaining? must we have been preascertaining? must you have been preascertaining? must they have been preascertaining? |
Forme simple | Forme en V-ing |
mustn't I preascertain? mustn't you preascertain? mustn't she preascertain? mustn't we preascertain? mustn't you preascertain? mustn't they preascertain? | mustn't I be preascertaining? mustn't you be preascertaining? mustn't she be preascertaining? mustn't we be preascertaining? mustn't you be preascertaining? mustn't they be preascertaining? |
Perfect | Perfect en V-ing |
mustn't I have preascertained? mustn't you have preascertained? mustn't she have preascertained? mustn't we have preascertained? mustn't you have preascertained? mustn't they have preascertained? | mustn't I have been preascertaining? mustn't you have been preascertaining? mustn't she have been preascertaining? mustn't we have been preascertaining? mustn't you have been preascertaining? mustn't they have been preascertaining? |