O RULES 1 We form the present perfect with be / have + past participle. 3 2 Regular past participles end with -ed / -ing. We can use the present perfect to talk about experiences / plans which we've had​

Ответ:

1.+past particple

2-ing

3. plans which we've had

(если будеть ошибки то без обит 3.упр не уверен)