a. Frequency adverbs come before the verb except for the verb be:
She is always on time.
She usually leaves at 7:00 am.
b. Don’t start a sentence with always or never.
Always I work late. = I always work late.
Never the students are on time. = The students are never on time.
c. Don’t use never, seldom, or rarely with a negative verb.
They don’t never play computer games. = They never play computer games.
She doesn’t rarely study at night. = She rarely studies at night.
Please find attached a worksheet for your homework;
ไทย 
English