"regain access" is a grammatically correct phrase and can be used in written English.
Example: After being locked out for hours, she finally regained access to her email account by resetting the password.
Mr Sanders had to sue to regain access to the Democrat database after the Clinton campaign accused him of improperly accessing the data.
Only then will Myanmar be able to regain access to the world financial system.
It took a week for the homeowner to regain access to her home, the complaint said.
Investors question whether Portugal can regain access this year to capital markets.
Second, a defaulting government will find it hard to regain access to international capital markets.
That wake-up feature gives technicians the ability to regain access to the depleted battery.
The president and his government denied any impropriety and sued to regain access to the accounts.
Then I reset the passwords for those services to regain access with my email address.
To regain access, I reactivated my Facebook account and then went into my Pinterest settings.
"CNN sues White House to regain access for reporter Jim Acosta". The Post's Paul Farhi.
The government is also aiming to regain access to debt markets by the time its latest bailout expires in 2018.
