add in something means to include something as part of something else (e.g. We need to add in some information about our company history.)

add on something means to include an extra thing or amount in something (e.g. A 20% service charge and applicable state sales tax will be added on all food and beverage arrangements.)

add to something means to increase in size, number or amount (e.g. Too late to get up will added to our work difficulties)

add up to something means equal (e.g. I paid add up to $100. The numbers on the opposite sides of a dice always add up to seven.)

ask after someone means to ask for information about how they are, especially about their health (e.g. Ann was asking after my mother. I told her she was fine.)

ask around means ask people the same question for help or information (e.g. He asked around to find out if anyone could rent me a room.)

ask for means to request to have or be given that you want someone to do something. (e.g. If you asked for the pork, you're asking for trouble. It's very dangerous there.)

ask someone in/ over means to invite someone into your home/ house. (e.g. If someone comes to the door, don’t ask them in. Jay asked me over for a cup of coffee this morning.)

ask someone out means to invite someone to go out with you, especially invite on a date. (e.g. Jon normally ask his friend out for dinner every weekend.)

away means away from home/ a place/ a person etc. in a different place, position, or situation (= walk away, run away, look away, etc.) (e.g. The woman got into her car and drove away. The due date is only a week away, but I couldn’t understand it yet. Some children’s hope is to get away early.)