"endeavours to" is a correct and commonly used phrase in written English.
It means to try or make an effort to do something. Example: The company endeavors to provide high-quality products at affordable prices.
Knitwear label Sibling also endeavours to make as much as possible in the UK.
Our endeavours to assist in the creation of the ECHR were noble and magnanimous.
"I wish all other members well in their endeavours to return to the House".
He added: "Our client uses its best endeavours to ensure that its marketing materials are correct".
I ask how she endeavours to keep in touch with new generations of readers.
Prince Lestat endeavours to bring these worlds and characters together in one volume.
Authentic personal experience is precisely what The Moth endeavours to supply.
But she endeavours to keep tight control of the information released.
And Waitrose has inadvertently moved towards aggravating the problem, as it endeavours to sanitise our lunchtime.
It endeavours to tell a complex story of power-shifts with very simplistic, minimalist prose.
My endeavours to provide robust scrutiny and challenge led to my professionalism being questioned.
