I can formulate you can formulate he can formulate we can formulate you can formulate they can formulate
Forme en V-ing
I can be formulating you can be formulating he can be formulating we can be formulating you can be formulating they can be formulating
Perfect
I can have formulated you can have formulated he can have formulated we can have formulated you can have formulated they can have formulated
Perfect en V-ing
I can have been formulating you can have been formulating he can have been formulating we can have been formulating you can have been formulating they can have been formulating
Négation
Forme simple
I can't formulate you can't formulate he can't formulate we can't formulate you can't formulate they can't formulate
Forme en V-ing
I can't be formulating you can't be formulating he can't be formulating we can't be formulating you can't be formulating they can't be formulating
Perfect
I can't have formulated you can't have formulated he can't have formulated we can't have formulated you can't have formulated they can't have formulated
Perfect en V-ing
I can't have been formulating you can't have been formulating he can't have been formulating we can't have been formulating you can't have been formulating they can't have been formulating
Forme interrogative
Forme simple
can I formulate? can you formulate? can he formulate? can we formulate? can you formulate? can they formulate?
Forme en V-ing
can I be formulating? can you be formulating? can he be formulating? can we be formulating? can you be formulating? can they be formulating?
Perfect
can I have formulated? can you have formulated? can he have formulated? can we have formulated? can you have formulated? can they have formulated?
Perfect en V-ing
can I have been formulating? can you have been formulating? can he have been formulating? can we have been formulating? can you have been formulating? can they have been formulating?
Forme interro-négative
Forme simple
can't I formulate? can't you formulate? can't he formulate? can't we formulate? can't you formulate? can't they formulate?
Forme en V-ing
can't I be formulating? can't you be formulating? can't he be formulating? can't we be formulating? can't you be formulating? can't they be formulating?
Perfect
can't I have formulated? can't you have formulated? can't he have formulated? can't we have formulated? can't you have formulated? can't they have formulated?
Perfect en V-ing
can't I have been formulating? can't you have been formulating? can't he have been formulating? can't we have been formulating? can't you have been formulating? can't they have been formulating?