sometimes
She sometimes has a music lesson.
on Sundays
He goes swimming on Sundays.
at the weekend
He visits his grandma at the weekend.
often
He often plays with his friends.
now
She's reading a book now.
at the moment
She's listening to music at the moment.
in the evening
She does her homework in the evenning.
now
She's watching TV now.
always
He always helps his mum.
at the moment
He's writing an email at the moment.