1. to start doing something; to do the first part of something
— begin — /bɪˈɡɪn/ — Shall I begin?
— began — /bɪˈɡæn/ — We began working on the project in May.
— begun — /bɪˈɡʌn/ — We have already begun to address the problem.

2. to be damaged and separated into two or more parts, as a result of force; to damage something in this way
— break — /breɪk/ — I break the rule.
— broke — /brəʊk/ — He broke the glass.
— broken — /ˈbrəʊkən/ — She has broken her phone.

3. to come to a place with somebody/something
— bring — /brɪŋ/ — Don't forget to bring your books with you.
— brought — /brɔːt/ — She brought her boyfriend to the party.
— brought — /brɔːt/ — I've brought something to show you.

4. to make something, especially a building, by putting parts together
— build — /bɪld/ — They have permission to build 200 new homes.
— built — /bɪlt/ — David built us a shed in the back yard.
— built — /bɪlt/ — They had a house built for them.

5. to obtain something by paying money for it
— buy — /baɪ/ — She had no money to buy a ticket.
— bought — /bɔːt/ — He bought his car second-hand.
— bought — /bɔːt/ — Her fame was bought at the expense of her marriage.