The phrase "pretty customary" is correct and usable in written English.
It can be used to describe something that is fairly common or typical in a particular context.
Example: "In our office, it's pretty customary to have a team lunch every Friday."
Alternatives: "quite common" or "fairly typical."
In the grand world of electronics, it's pretty much customary to launch in one country, wait a few days, launch in another, and so on.
Instead he honors the contract that the Bond series made with its fans long ago and delivers the customary chases, pretty women and silky villainy along with the little and big bangs.
The hinge works well and the whole set up looks pretty nice in the customary ThinkPad matte black.
The catchy moniker was pretty much inevitable; it's been customary to bestow A-list celebrity couples with portmanteaus since the days of "Bennifer".
Last year, Hahnemann's roast – always lamb – was cooked with elderflower cordial and deep-fried elderflowers and eaten, as is customary, on the beach on a pretty picnic set.
And there was a pretty good philosophical argument against it (of the customary form: either it's false or it's trivial; either you are pushed into claiming that atoms are thinking about cappuccinos or you retreat to the uninteresting and obvious position that atoms have the potential to contribute to larger things that think about cappuccinos).
At this point details on the new product are fairly sparse — it looks like Google hasn't written its customary blog post yet, but given how basic the product is it's pretty easy to figure out how it works.
As is now customary in Montreal protests, the march was declared illegal pretty much the moment it began, and seconds later an SPVM bus swooped in and unloaded its merchandise.
As it is, the eponymous battle is pretty much the lone order of business here, and Jackson realises it with his customary muscular gusto – he's good at battles, as we all well know, but there's not much to distinguish this one from the effects-laden showdowns we've already seen in his Middle-earth odyssey.
Displaying what some describe as his customary wit, Mr Berlusconi said it was better to have a fondness for pretty girls than to be gay.
