Phrasal Verbs 12

keep on doing sthg
continue doing
Keep on stirring until the liquid comes to a boil.
keep sthg from sby
not tell
We kept our relationship from our parents for two years.
keep sby/ sthg out
stop from entering
Try to keep the wet dog out of the living room.
keep sthg up
continue at the same rate
If you keep those results up you will get into a great college.
let sby down
fail to support or help, disappoint
I need you to be on time. Don't let me down this time.
let sby in
allow to enter
Can you let the cat in before you go to school?
log in (or on)
sign in (to a website, database etc)
I can't log in to Facebook because I've forgotten my password.
log out (or off)
sign out (of a website, database etc)
If you don't log off somebody could get into your account.