I can shallow you can shallow he can shallow we can shallow you can shallow they can shallow
V-ing form
I can be shallowing you can be shallowing he can be shallowing we can be shallowing you can be shallowing they can be shallowing
Perfect
I can have shallowed you can have shallowed he can have shallowed we can have shallowed you can have shallowed they can have shallowed
V-ing perfect
I can have been shallowing you can have been shallowing he can have been shallowing we can have been shallowing you can have been shallowing they can have been shallowing
Negation
Simple form
I can't shallow you can't shallow he can't shallow we can't shallow you can't shallow they can't shallow
V-ing form
I can't be shallowing you can't be shallowing he can't be shallowing we can't be shallowing you can't be shallowing they can't be shallowing
Perfect
I can't have shallowed you can't have shallowed he can't have shallowed we can't have shallowed you can't have shallowed they can't have shallowed
V-ing perfect
I can't have been shallowing you can't have been shallowing he can't have been shallowing we can't have been shallowing you can't have been shallowing they can't have been shallowing
Interrogative form
Simple form
can I shallow? can you shallow? can he shallow? can we shallow? can you shallow? can they shallow?
V-ing form
can I be shallowing? can you be shallowing? can he be shallowing? can we be shallowing? can you be shallowing? can they be shallowing?
Perfect
can I have shallowed? can you have shallowed? can he have shallowed? can we have shallowed? can you have shallowed? can they have shallowed?
V-ing perfect
can I have been shallowing? can you have been shallowing? can he have been shallowing? can we have been shallowing? can you have been shallowing? can they have been shallowing?
Interro-negative form
Simple form
can't I shallow? can't you shallow? can't he shallow? can't we shallow? can't you shallow? can't they shallow?
V-ing form
can't I be shallowing? can't you be shallowing? can't he be shallowing? can't we be shallowing? can't you be shallowing? can't they be shallowing?
Perfect
can't I have shallowed? can't you have shallowed? can't he have shallowed? can't we have shallowed? can't you have shallowed? can't they have shallowed?
V-ing perfect
can't I have been shallowing? can't you have been shallowing? can't he have been shallowing? can't we have been shallowing? can't you have been shallowing? can't they have been shallowing?