I can preformulate you can preformulate she can preformulate we can preformulate you can preformulate they can preformulate
Forme en V-ing
I can be preformulating you can be preformulating she can be preformulating we can be preformulating you can be preformulating they can be preformulating
Perfect
I can have preformulated you can have preformulated she can have preformulated we can have preformulated you can have preformulated they can have preformulated
Perfect en V-ing
I can have been preformulating you can have been preformulating she can have been preformulating we can have been preformulating you can have been preformulating they can have been preformulating
Négation
Forme simple
I can't preformulate you can't preformulate she can't preformulate we can't preformulate you can't preformulate they can't preformulate
Forme en V-ing
I can't be preformulating you can't be preformulating she can't be preformulating we can't be preformulating you can't be preformulating they can't be preformulating
Perfect
I can't have preformulated you can't have preformulated she can't have preformulated we can't have preformulated you can't have preformulated they can't have preformulated
Perfect en V-ing
I can't have been preformulating you can't have been preformulating she can't have been preformulating we can't have been preformulating you can't have been preformulating they can't have been preformulating
Forme interrogative
Forme simple
can I preformulate? can you preformulate? can she preformulate? can we preformulate? can you preformulate? can they preformulate?
Forme en V-ing
can I be preformulating? can you be preformulating? can she be preformulating? can we be preformulating? can you be preformulating? can they be preformulating?
Perfect
can I have preformulated? can you have preformulated? can she have preformulated? can we have preformulated? can you have preformulated? can they have preformulated?
Perfect en V-ing
can I have been preformulating? can you have been preformulating? can she have been preformulating? can we have been preformulating? can you have been preformulating? can they have been preformulating?
Forme interro-négative
Forme simple
can't I preformulate? can't you preformulate? can't she preformulate? can't we preformulate? can't you preformulate? can't they preformulate?
Forme en V-ing
can't I be preformulating? can't you be preformulating? can't she be preformulating? can't we be preformulating? can't you be preformulating? can't they be preformulating?
Perfect
can't I have preformulated? can't you have preformulated? can't she have preformulated? can't we have preformulated? can't you have preformulated? can't they have preformulated?
Perfect en V-ing
can't I have been preformulating? can't you have been preformulating? can't she have been preformulating? can't we have been preformulating? can't you have been preformulating? can't they have been preformulating?