I can loco you can loco he can loco we can loco you can loco they can loco
V-ing form
I can be locoing you can be locoing he can be locoing we can be locoing you can be locoing they can be locoing
Perfect
I can have locoed you can have locoed he can have locoed we can have locoed you can have locoed they can have locoed
V-ing perfect
I can have been locoing you can have been locoing he can have been locoing we can have been locoing you can have been locoing they can have been locoing
Negation
Simple form
I cannot loco you cannot loco he cannot loco we cannot loco you cannot loco they cannot loco
V-ing form
I cannot be locoing you cannot be locoing he cannot be locoing we cannot be locoing you cannot be locoing they cannot be locoing
Perfect
I cannot have locoed you cannot have locoed he cannot have locoed we cannot have locoed you cannot have locoed they cannot have locoed
V-ing perfect
I cannot have been locoing you cannot have been locoing he cannot have been locoing we cannot have been locoing you cannot have been locoing they cannot have been locoing
Interrogative form
Simple form
can I loco? can you loco? can he loco? can we loco? can you loco? can they loco?
V-ing form
can I be locoing? can you be locoing? can he be locoing? can we be locoing? can you be locoing? can they be locoing?
Perfect
can I have locoed? can you have locoed? can he have locoed? can we have locoed? can you have locoed? can they have locoed?
V-ing perfect
can I have been locoing? can you have been locoing? can he have been locoing? can we have been locoing? can you have been locoing? can they have been locoing?
Interro-negative form
Simple form
can I not loco? can you not loco? can he not loco? can we not loco? can you not loco? can they not loco?
V-ing form
can I not be locoing? can you not be locoing? can he not be locoing? can we not be locoing? can you not be locoing? can they not be locoing?
Perfect
can I not have locoed? can you not have locoed? can he not have locoed? can we not have locoed? can you not have locoed? can they not have locoed?
V-ing perfect
can I not have been locoing? can you not have been locoing? can he not have been locoing? can we not have been locoing? can you not have been locoing? can they not have been locoing?