I can slit you can slit she can slit we can slit you can slit they can slit
V-ing form
I can be slitting you can be slitting she can be slitting we can be slitting you can be slitting they can be slitting
Perfect
I can have slit you can have slit she can have slit we can have slit you can have slit they can have slit
V-ing perfect
I can have been slitting you can have been slitting she can have been slitting we can have been slitting you can have been slitting they can have been slitting
Negation
Simple form
I can't slit you can't slit she can't slit we can't slit you can't slit they can't slit
V-ing form
I can't be slitting you can't be slitting she can't be slitting we can't be slitting you can't be slitting they can't be slitting
Perfect
I can't have slit you can't have slit she can't have slit we can't have slit you can't have slit they can't have slit
V-ing perfect
I can't have been slitting you can't have been slitting she can't have been slitting we can't have been slitting you can't have been slitting they can't have been slitting
Interrogative form
Simple form
can I slit? can you slit? can she slit? can we slit? can you slit? can they slit?
V-ing form
can I be slitting? can you be slitting? can she be slitting? can we be slitting? can you be slitting? can they be slitting?
Perfect
can I have slit? can you have slit? can she have slit? can we have slit? can you have slit? can they have slit?
V-ing perfect
can I have been slitting? can you have been slitting? can she have been slitting? can we have been slitting? can you have been slitting? can they have been slitting?
Interro-negative form
Simple form
can't I slit? can't you slit? can't she slit? can't we slit? can't you slit? can't they slit?
V-ing form
can't I be slitting? can't you be slitting? can't she be slitting? can't we be slitting? can't you be slitting? can't they be slitting?
Perfect
can't I have slit? can't you have slit? can't she have slit? can't we have slit? can't you have slit? can't they have slit?
V-ing perfect
can't I have been slitting? can't you have been slitting? can't she have been slitting? can't we have been slitting? can't you have been slitting? can't they have been slitting?