I can overlook you can overlook she can overlook we can overlook you can overlook they can overlook
V-ing form
I can be overlooking you can be overlooking she can be overlooking we can be overlooking you can be overlooking they can be overlooking
Perfect
I can have overlooked you can have overlooked she can have overlooked we can have overlooked you can have overlooked they can have overlooked
V-ing perfect
I can have been overlooking you can have been overlooking she can have been overlooking we can have been overlooking you can have been overlooking they can have been overlooking
Negation
Simple form
I cannot overlook you cannot overlook she cannot overlook we cannot overlook you cannot overlook they cannot overlook
V-ing form
I cannot be overlooking you cannot be overlooking she cannot be overlooking we cannot be overlooking you cannot be overlooking they cannot be overlooking
Perfect
I cannot have overlooked you cannot have overlooked she cannot have overlooked we cannot have overlooked you cannot have overlooked they cannot have overlooked
V-ing perfect
I cannot have been overlooking you cannot have been overlooking she cannot have been overlooking we cannot have been overlooking you cannot have been overlooking they cannot have been overlooking
Interrogative form
Simple form
can I overlook? can you overlook? can she overlook? can we overlook? can you overlook? can they overlook?
V-ing form
can I be overlooking? can you be overlooking? can she be overlooking? can we be overlooking? can you be overlooking? can they be overlooking?
Perfect
can I have overlooked? can you have overlooked? can she have overlooked? can we have overlooked? can you have overlooked? can they have overlooked?
V-ing perfect
can I have been overlooking? can you have been overlooking? can she have been overlooking? can we have been overlooking? can you have been overlooking? can they have been overlooking?
Interro-negative form
Simple form
can I not overlook? can you not overlook? can she not overlook? can we not overlook? can you not overlook? can they not overlook?
V-ing form
can I not be overlooking? can you not be overlooking? can she not be overlooking? can we not be overlooking? can you not be overlooking? can they not be overlooking?
Perfect
can I not have overlooked? can you not have overlooked? can she not have overlooked? can we not have overlooked? can you not have overlooked? can they not have overlooked?
V-ing perfect
can I not have been overlooking? can you not have been overlooking? can she not have been overlooking? can we not have been overlooking? can you not have been overlooking? can they not have been overlooking?