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 can't attend sth you can't attend sth he can't attend sth we can't attend sth you can't attend sth they can't attend sth
V-ing form
I can't be attend sthing you can't be attend sthing he can't be attend sthing we can't be attend sthing you can't be attend sthing they can't be attend sthing
Perfect
I can't have attend sthed you can't have attend sthed he can't have attend sthed we can't have attend sthed you can't have attend sthed they can't have attend sthed
V-ing perfect
I can't have been attend sthing you can't have been attend sthing he can't have been attend sthing we can't have been attend sthing you can't have been attend sthing they can't 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't I attend sth? can't you attend sth? can't he attend sth? can't we attend sth? can't you attend sth? can't they attend sth?
V-ing form
can't I be attend sthing? can't you be attend sthing? can't he be attend sthing? can't we be attend sthing? can't you be attend sthing? can't they be attend sthing?
Perfect
can't I have attend sthed? can't you have attend sthed? can't he have attend sthed? can't we have attend sthed? can't you have attend sthed? can't they have attend sthed?
V-ing perfect
can't I have been attend sthing? can't you have been attend sthing? can't he have been attend sthing? can't we have been attend sthing? can't you have been attend sthing? can't they have been attend sthing?