Delete Events and Todos 

Modify Events and Todos, and Delete Components  

or, Delete Calendar 

c^d^g 

or, 

a^d^g 

To delete events or todos, you need modify permission, and either delete components or delete calendar permission. 

Free-busy 

Free-busy Components or 

Free-busy Calendar 

c^f^g 

a^f^g 

To view a free-busy representation of a calendar (the events and todos), you need free-busy components or free-busy calendar permission. 

Modify Events and Todos 

Read Events and Todos, and Write Components 

or, Write Calendar 

c^w^g 

a^w^g 

To modify components of a calendar (events and todos), you need read permission, and either write components or write calendar permission. 

Read Events on a Calendar 

Read Calendar 

a^r^g 

To read components, you must have read calendar permission. 

Note that read components permission (c^r^g) does not work. 

Schedule (Invite) 

Schedule Calendar 

a^s^g 

To invite someone, you need schedule calendar permission. 

Subscribe 

Read Properties 

p^r^g 

To subscribe to a calendar, you must have read properties permission.