be connected / have relation to / be related

take part in / play a part in / be concerned with / participate / have a part in

have a connection with / have relations with / concern *oneself in / take part in / associate with / be concerned with / have to do with

have a connection with / be concerned with / have relations with / be associated with / have to do with

take part in / play a part in / be concerned with / participate / have a part in

have a connection with / be involved in / relate / be concerned with / associate with / have to do with

have a connection with / relate / be concerned with / associate with / have to do with

have a hand in / being invoved / concern *oneself with / participation / participate in / have something to do with / be mixed up in / being mixed up in / having something to do with

follow suit / follow in *someone's footsteps / follow

have a hand in / practice [medicine] / attend to [work] / be employed with / pursue / taking part in / concerning oneself with / participate in / engage *oneself in / concerning oneself in / participating in / concern oneself with / be occupied with / having a hand in / being concerned in / take part in / concern oneself in / follow [a profession] / be concerned in / carry on [trade] / pursuing / engaging oneself in