Collocations for insist - verb

firmly, strongly, vehemently
adamantly (esp. AmE), doggedly, steadfastly, stubbornly
He stubbornly insisted on doing it all himself.

absolutely
I'm paying for this—no, I absolutely insist.

loudly, quietly
She loudly insisted that she had a right to stay.
He quietly but firmly insisted.

always
repeatedly
still
She still insists her critics are wrong.

rightly
People rightly insist on being treated as individuals.

continue to
try to

on, upon
He insists on speaking to you personally.