be to do

/biː tə dˈuː/

[phrase]

to be to do

[PHRASE]

used to express necessity or obligation

Examples

1. I think that the riskiest thing would be to do something flat, generic because that I know it doesn't work.

2. But the longer we wait, the harder it's going to be to do a comeback victory.

3. We think the most prudent thing they could do here would be to do another equity offering, because it's not clear how long this downturn would last.

4. Now, if you do have an excessive sleep debt and you really need to pay that back on the weekends, the best way without interrupting your circadian rhythm would be to do that with a nap in the afternoon because that's not gonna change your body's physiological circadian rhythm.