Looking on the internet deeply has found these results:

I take my working day very serious is the most popular phrase on the web.

I take my working day very seriously 110,200,000 results on the web	I take my working day very serious 116,700,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I take my job as backup best man very seriously. I take my business very seriously. I take my academics very seriously. I take this day very seriously. I take my cover very seriously. I take my Thud very seriously. I take my spirituality very seriously. Well, I take my work very seriously.	Because when it comes to money, take my word, they're very serious. I take my temperature every hour. But here I am a citizen of Baltimore, and I take my citizenship as seriously as I take my credentials as a columnist. I take my spirituality very seriously. "And my working days are done" I take my business very seriously. I take a very serious view of further increasing the costs of transport for people and goods. I take this day very seriously.

I take my working day very seriously

110,200,000 results on the web

I take my working day very serious

116,700,000 results on the web

More popular!

Because when it comes to money, take my word, they're very serious.
I take my temperature every hour.
But here I am a citizen of Baltimore, and I take my citizenship as seriously as I take my credentials as a columnist.
I take my spirituality very seriously.
"And my working days are done"
I take my business very seriously.
I take a very serious view of further increasing the costs of transport for people and goods.
I take this day very seriously.