get down to
phr. v..phr. v.. to start doing something seriously or give it your full attention.
phr. v.. to begin to direct one's efforts or attention towards a specific task or topic, often after a period of delay or socialising.
Let's get down to business.
After we finished our coffee and caught up on news, we finally got down to studying for the exam.
The committee spent an hour debating the agenda before they could get down to the actual task of budget allocation.
usually followed by a noun or a gerund (-ing form).
contrast this with 'get to' (reach a destination) to show how 'down' adds a sense of focus and seriousness to the action.
We got down to work on the project.We got down to working on the project.if using a verb after 'to', it must be in the -ing form because 'to' is a preposition here, not part of an infinitive.