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Learn verb patterns as part of the verb: decide, hope, want, plan + to-infinitive; enjoy, avoid, finish, mind + V-ing. Example: We decided to interview grandparents. They enjoy sharing memories. A change in the following form is not optional for these verbs.
For /fl/ in flat and /fr/ in friend, start with /f/ (upper teeth lightly touching the lower lip), then move straight to /l/ or /r/. Do not insert /ə/ between the consonants. Practise flat floor and friendly friends slowly.