I feel the sentence is a little bit off. Some alternatives I considered (but also feels a little bit off):
- You perhaps don't have access to this contact.
- Perhaps you don't have access to this contact.
- You probably don't have access to this contact.
- Probably you don't have access to this contact.
- You may be don't have access to this contact.
- You may not have access to this contact.
The full sentence is: "Unable to download the data. You perhaps don't have access to this contact."
What I want to know is how to form a grammatically correct simple statement that simply says there's "a possibility" that the user doesn't have access to a contact, but doesn't sound patronizing ("may not" sounds patronizing? Like the user's access to the contact is deliberately disallowed by the system, rather than from natural cause like they have not connected yet?)