I can invest you can invest she can invest we can invest you can invest they can invest
Forme en V-ing
I can be investing you can be investing she can be investing we can be investing you can be investing they can be investing
Perfect
I can have invested you can have invested she can have invested we can have invested you can have invested they can have invested
Perfect en V-ing
I can have been investing you can have been investing she can have been investing we can have been investing you can have been investing they can have been investing
Négation
Forme simple
I can't invest you can't invest she can't invest we can't invest you can't invest they can't invest
Forme en V-ing
I can't be investing you can't be investing she can't be investing we can't be investing you can't be investing they can't be investing
Perfect
I can't have invested you can't have invested she can't have invested we can't have invested you can't have invested they can't have invested
Perfect en V-ing
I can't have been investing you can't have been investing she can't have been investing we can't have been investing you can't have been investing they can't have been investing
Forme interrogative
Forme simple
can I invest? can you invest? can she invest? can we invest? can you invest? can they invest?
Forme en V-ing
can I be investing? can you be investing? can she be investing? can we be investing? can you be investing? can they be investing?
Perfect
can I have invested? can you have invested? can she have invested? can we have invested? can you have invested? can they have invested?
Perfect en V-ing
can I have been investing? can you have been investing? can she have been investing? can we have been investing? can you have been investing? can they have been investing?
Forme interro-négative
Forme simple
can't I invest? can't you invest? can't she invest? can't we invest? can't you invest? can't they invest?
Forme en V-ing
can't I be investing? can't you be investing? can't she be investing? can't we be investing? can't you be investing? can't they be investing?
Perfect
can't I have invested? can't you have invested? can't she have invested? can't we have invested? can't you have invested? can't they have invested?
Perfect en V-ing
can't I have been investing? can't you have been investing? can't she have been investing? can't we have been investing? can't you have been investing? can't they have been investing?