I can decrease you can decrease he can decrease we can decrease you can decrease they can decrease
Forme en V-ing
I can be decreasing you can be decreasing he can be decreasing we can be decreasing you can be decreasing they can be decreasing
Perfect
I can have decreased you can have decreased he can have decreased we can have decreased you can have decreased they can have decreased
Perfect en V-ing
I can have been decreasing you can have been decreasing he can have been decreasing we can have been decreasing you can have been decreasing they can have been decreasing
Négation
Forme simple
I cannot decrease you cannot decrease he cannot decrease we cannot decrease you cannot decrease they cannot decrease
Forme en V-ing
I cannot be decreasing you cannot be decreasing he cannot be decreasing we cannot be decreasing you cannot be decreasing they cannot be decreasing
Perfect
I cannot have decreased you cannot have decreased he cannot have decreased we cannot have decreased you cannot have decreased they cannot have decreased
Perfect en V-ing
I cannot have been decreasing you cannot have been decreasing he cannot have been decreasing we cannot have been decreasing you cannot have been decreasing they cannot have been decreasing
Forme interrogative
Forme simple
can I decrease? can you decrease? can he decrease? can we decrease? can you decrease? can they decrease?
Forme en V-ing
can I be decreasing? can you be decreasing? can he be decreasing? can we be decreasing? can you be decreasing? can they be decreasing?
Perfect
can I have decreased? can you have decreased? can he have decreased? can we have decreased? can you have decreased? can they have decreased?
Perfect en V-ing
can I have been decreasing? can you have been decreasing? can he have been decreasing? can we have been decreasing? can you have been decreasing? can they have been decreasing?
Forme interro-négative
Forme simple
can I not decrease? can you not decrease? can he not decrease? can we not decrease? can you not decrease? can they not decrease?
Forme en V-ing
can I not be decreasing? can you not be decreasing? can he not be decreasing? can we not be decreasing? can you not be decreasing? can they not be decreasing?
Perfect
can I not have decreased? can you not have decreased? can he not have decreased? can we not have decreased? can you not have decreased? can they not have decreased?
Perfect en V-ing
can I not have been decreasing? can you not have been decreasing? can he not have been decreasing? can we not have been decreasing? can you not have been decreasing? can they not have been decreasing?