Phrasal verbs that include (someone) or (something) are separable. Others cannot be separated, so the object must come after the entire phrasal verb.

to back (someone) up

to give someone help and support: My old boss would always back me up if I suggested a new idea.

Similarly the compound noun “backup” means help or support.

to back (something) up

to make a copy of a computer file on a CD or external hard drive: Don’t forget to back up your work before you leave the office.

Similarly “backup” means the additional copy of the file.

to bail (someone) out

to get somebody or something out of trouble: The government bailed out the banks during the financial crisis.

The compound noun “bailout” describes the support provided.

to bank on

to rely on somebody or something: We’re banking on this new product to boost profits.

to branch out

to take up something new, start a new business interest: We need to branch out to new customers if we’re to remain competitive.

to break into

to enter a field of activity: At 35 he broke into advertising after a previous career as a teacher.

to spend money out of necessity: We’re going to have to break into emergency funds if profits don’t improve next quarter.

to bring (something) forward

to reschedule an event for an earlier date: Due to a change in circumstances we have brought forward the shareholders’ meeting.

Cf. “to put back”: to reschedule for a later date.

to bring (something) off

to successfully make something happen: Congratulations to the team for bringing off such a successful campaign.

to bring (something) up

to introduce an issue: We’ve already discussed the issue of reduced bonuses. There’s no need to bring it up again.

to take care of and educate a child

to burn out

to work to exhaustion: John’s regularly working 16-hour days. At this rate he’s going to burn out.

Similarly the compound noun “burnout” means a collapse brought on by physical or emotional exhaustion.

to buy into

to buy an interest in a business: John has just bought into some new real estate venture.

to buy (someone) out

to buy all of someone else’s interest in a business: Some big real estate investor wants to buy John out.

The compound noun “buyout” describes the event.

to buy (something) up

to buy all of a certain stock: Shares in MaxCo are down. Let’s buy up all we can get our hands on.