I can ta you can ta he can ta we can ta you can ta they can ta
V-ing form
I can be taing you can be taing he can be taing we can be taing you can be taing they can be taing
Perfect
I can have taed you can have taed he can have taed we can have taed you can have taed they can have taed
V-ing perfect
I can have been taing you can have been taing he can have been taing we can have been taing you can have been taing they can have been taing
Negation
Simple form
I can't ta you can't ta he can't ta we can't ta you can't ta they can't ta
V-ing form
I can't be taing you can't be taing he can't be taing we can't be taing you can't be taing they can't be taing
Perfect
I can't have taed you can't have taed he can't have taed we can't have taed you can't have taed they can't have taed
V-ing perfect
I can't have been taing you can't have been taing he can't have been taing we can't have been taing you can't have been taing they can't have been taing
Interrogative form
Simple form
can I ta? can you ta? can he ta? can we ta? can you ta? can they ta?
V-ing form
can I be taing? can you be taing? can he be taing? can we be taing? can you be taing? can they be taing?
Perfect
can I have taed? can you have taed? can he have taed? can we have taed? can you have taed? can they have taed?
V-ing perfect
can I have been taing? can you have been taing? can he have been taing? can we have been taing? can you have been taing? can they have been taing?
Interro-negative form
Simple form
can't I ta? can't you ta? can't he ta? can't we ta? can't you ta? can't they ta?
V-ing form
can't I be taing? can't you be taing? can't he be taing? can't we be taing? can't you be taing? can't they be taing?
Perfect
can't I have taed? can't you have taed? can't he have taed? can't we have taed? can't you have taed? can't they have taed?
V-ing perfect
can't I have been taing? can't you have been taing? can't he have been taing? can't we have been taing? can't you have been taing? can't they have been taing?