Question

поставить во все времена (6) I (to meet) my friends in the park

Answer 1

PRESENT SIMPLE                     i meet my friends in the parkPresent Continuous                     i'm meeting my friends in the park
Present Perfect                            i have met my friends in the park
Present Perfect Continuous     i have been meeting my friend in the park

Past   Simple                               i met my friends in the park
Past  Continuous                        i was meeting my friends in the park
Past  Perfect                               i had met my friends in the park 
Past  Perfect Continuous       i had been meeting my friends in the park

Future Simple                          i  will(shall) meet my friends in the park
Future Continuous             i will(shall) be meeting my friends in the park
Future Perfect                       i will (shall) have met my friends in the park
Future Perfect Continuous i will(shall) have been meeting my friends in the park