"split into pairs" is a correct and usable phrase in written English.
You can use it to describe a situation where two or more people are evenly divided or paired off, such as in a class or team activity. For example, you might say, "The teacher split the class into pairs and assigned each group an experiment to complete."
But in between they split into pairs for duets and quartets.
Rather than jam interminably, the group split into pairs to hone their writing, Gaz explains.
They put scarves over their noses and mouths, split into pairs and began slowly searching the campus.
Supervised by Williams and some of the most experienced diagnostic professionals in the world, the participating clinicians were given extensive special training before being split into pairs and asked to interview nearly six hundred prospective patients.
After his players were split into pairs and tied to each other with a bungee-type lead to test each other's resistance, Van Gaal watched a practice match that included the former Liverpool forward Dirk Kuyt, now of Fenerbahce, and Chelsea's Marco van Ginkel.
The team have been split into pairs to share rooms and Coughlan is happy to confirm the location of the party.
As Kasab left the docks, it was in the company of a man the police say has been identified as Ismail Khan, the terrorists splitting into pairs of small kill teams.
We tried a few more practical telepathic experiments, such as splitting into pairs to predict which symbols would appear on mystical-looking dice.
Splitting into pairs and using wirecutters to get through a neighboring fence, they came at the house on two sides from the rear, capturing first little Hadeel with her dad in the garden, then Abeer and her mother in the kitchen.
We would have to split up into pairs, and we would have to work through every other night for the rest of the year.
Glee club director Will Schuester Matthew Morrisonn) has the club split up into pairs to sing ballads to one another.
