The sentence "He was a great person" is correct and can be used in written English. It can be used to describe someone who has passed away, for example: John was an incredible friend who touched many lives during his time here. He was a great person who will be deeply missed.
"And he was a great person".
He was a great person and a wise man.
He was a great person, teacher, husband, grandfather and father.
"He was a great person," Ms. Garr recalled.
He was a great person, in every way".
"He was a great person, a great teammate, a guy that was important to me.
He's a great person.
Coleman said: "He's a great person.
"Because he's a great person.
But when it's important, he's a great person.
He's a great person and a terrific player".
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com