to follow him/her/it, to keep up with him/her/it
Él andaba tan deprisa que ella no podía seguirle el ritmo.
He was walking so fast that she couldn't keep up with him.
Ella debería seguirle.
She should follow him.
No pueden seguirle la pista.
They can't track him.
Hay que seguirle el juego.
We have to play along.
No puedo seguirle el paso.
I can't keep up with him.
— El arca rusa (2002)
Le costó seguirle el ritmo a sus compañeros de clase.
He struggled to keep up with his classmates.