I can adhere you can adhere he can adhere we can adhere you can adhere they can adhere
V-ing form
I can be adhering you can be adhering he can be adhering we can be adhering you can be adhering they can be adhering
Perfect
I can have adhered you can have adhered he can have adhered we can have adhered you can have adhered they can have adhered
V-ing perfect
I can have been adhering you can have been adhering he can have been adhering we can have been adhering you can have been adhering they can have been adhering
Negation
Simple form
I can't adhere you can't adhere he can't adhere we can't adhere you can't adhere they can't adhere
V-ing form
I can't be adhering you can't be adhering he can't be adhering we can't be adhering you can't be adhering they can't be adhering
Perfect
I can't have adhered you can't have adhered he can't have adhered we can't have adhered you can't have adhered they can't have adhered
V-ing perfect
I can't have been adhering you can't have been adhering he can't have been adhering we can't have been adhering you can't have been adhering they can't have been adhering
Interrogative form
Simple form
can I adhere? can you adhere? can he adhere? can we adhere? can you adhere? can they adhere?
V-ing form
can I be adhering? can you be adhering? can he be adhering? can we be adhering? can you be adhering? can they be adhering?
Perfect
can I have adhered? can you have adhered? can he have adhered? can we have adhered? can you have adhered? can they have adhered?
V-ing perfect
can I have been adhering? can you have been adhering? can he have been adhering? can we have been adhering? can you have been adhering? can they have been adhering?
Interro-negative form
Simple form
can't I adhere? can't you adhere? can't he adhere? can't we adhere? can't you adhere? can't they adhere?
V-ing form
can't I be adhering? can't you be adhering? can't he be adhering? can't we be adhering? can't you be adhering? can't they be adhering?
Perfect
can't I have adhered? can't you have adhered? can't he have adhered? can't we have adhered? can't you have adhered? can't they have adhered?
V-ing perfect
can't I have been adhering? can't you have been adhering? can't he have been adhering? can't we have been adhering? can't you have been adhering? can't they have been adhering?