Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I can attend sth you can attend sth he can attend sth we can attend sth you can attend sth they can attend sth
V-ing form
I can be attend sthing you can be attend sthing he can be attend sthing we can be attend sthing you can be attend sthing they can be attend sthing
Perfect
I can have attend sthed you can have attend sthed he can have attend sthed we can have attend sthed you can have attend sthed they can have attend sthed
V-ing perfect
I can have been attend sthing you can have been attend sthing he can have been attend sthing we can have been attend sthing you can have been attend sthing they can have been attend sthing
Negation
Simple form
I cannot attend sth you cannot attend sth he cannot attend sth we cannot attend sth you cannot attend sth they cannot attend sth
V-ing form
I cannot be attend sthing you cannot be attend sthing he cannot be attend sthing we cannot be attend sthing you cannot be attend sthing they cannot be attend sthing
Perfect
I cannot have attend sthed you cannot have attend sthed he cannot have attend sthed we cannot have attend sthed you cannot have attend sthed they cannot have attend sthed
V-ing perfect
I cannot have been attend sthing you cannot have been attend sthing he cannot have been attend sthing we cannot have been attend sthing you cannot have been attend sthing they cannot have been attend sthing
Interrogative form
Simple form
can I attend sth? can you attend sth? can he attend sth? can we attend sth? can you attend sth? can they attend sth?
V-ing form
can I be attend sthing? can you be attend sthing? can he be attend sthing? can we be attend sthing? can you be attend sthing? can they be attend sthing?
Perfect
can I have attend sthed? can you have attend sthed? can he have attend sthed? can we have attend sthed? can you have attend sthed? can they have attend sthed?
V-ing perfect
can I have been attend sthing? can you have been attend sthing? can he have been attend sthing? can we have been attend sthing? can you have been attend sthing? can they have been attend sthing?
Interro-negative form
Simple form
can I not attend sth? can you not attend sth? can he not attend sth? can we not attend sth? can you not attend sth? can they not attend sth?
V-ing form
can I not be attend sthing? can you not be attend sthing? can he not be attend sthing? can we not be attend sthing? can you not be attend sthing? can they not be attend sthing?
Perfect
can I not have attend sthed? can you not have attend sthed? can he not have attend sthed? can we not have attend sthed? can you not have attend sthed? can they not have attend sthed?
V-ing perfect
can I not have been attend sthing? can you not have been attend sthing? can he not have been attend sthing? can we not have been attend sthing? can you not have been attend sthing? can they not have been attend sthing?