They
admire her for her courage. > She
is admired for her courage. present simple
They are keeping him in a coma. > He is being kept in a coma. present continuous
Someone graffitied this wall > This wall was graffitied by someone. past simple
They were walking the dog then > The dog was being walked then. past continuous
They have never seen him like that > He has never been seen like that. present perfect
You can spot lions in Africa > Lions can be spotted in Africa. modal verbs
They could have warned her. > She could have been warned. past modal verbs