I can taboo you can taboo he can taboo we can taboo you can taboo they can taboo
V-ing form
I can be tabooing you can be tabooing he can be tabooing we can be tabooing you can be tabooing they can be tabooing
Perfect
I can have tabooed you can have tabooed he can have tabooed we can have tabooed you can have tabooed they can have tabooed
V-ing perfect
I can have been tabooing you can have been tabooing he can have been tabooing we can have been tabooing you can have been tabooing they can have been tabooing
Negation
Simple form
I can't taboo you can't taboo he can't taboo we can't taboo you can't taboo they can't taboo
V-ing form
I can't be tabooing you can't be tabooing he can't be tabooing we can't be tabooing you can't be tabooing they can't be tabooing
Perfect
I can't have tabooed you can't have tabooed he can't have tabooed we can't have tabooed you can't have tabooed they can't have tabooed
V-ing perfect
I can't have been tabooing you can't have been tabooing he can't have been tabooing we can't have been tabooing you can't have been tabooing they can't have been tabooing
Interrogative form
Simple form
can I taboo? can you taboo? can he taboo? can we taboo? can you taboo? can they taboo?
V-ing form
can I be tabooing? can you be tabooing? can he be tabooing? can we be tabooing? can you be tabooing? can they be tabooing?
Perfect
can I have tabooed? can you have tabooed? can he have tabooed? can we have tabooed? can you have tabooed? can they have tabooed?
V-ing perfect
can I have been tabooing? can you have been tabooing? can he have been tabooing? can we have been tabooing? can you have been tabooing? can they have been tabooing?
Interro-negative form
Simple form
can't I taboo? can't you taboo? can't he taboo? can't we taboo? can't you taboo? can't they taboo?
V-ing form
can't I be tabooing? can't you be tabooing? can't he be tabooing? can't we be tabooing? can't you be tabooing? can't they be tabooing?
Perfect
can't I have tabooed? can't you have tabooed? can't he have tabooed? can't we have tabooed? can't you have tabooed? can't they have tabooed?
V-ing perfect
can't I have been tabooing? can't you have been tabooing? can't he have been tabooing? can't we have been tabooing? can't you have been tabooing? can't they have been tabooing?