Helen and Sam / might / St. Valentine's Day/ to celebrate
Helen and Sam might celebrate St. Valentine's Day.
Helen and Sam / might / St. Valentine's Day/ to celebrate
Helen and Sam might celebrate St. Valentine's Day
Louise / might / to watch / New Year's Eve/ salute / on
Louise might watch salute on New Year's Eve.
Claire / may / to send / to her friend / her birthday/ a card / on
Claire may send a card to her friend on her birthday.
Hannah / going to / to cook / Thanksgiving / at
Hannah is going to cook at Thanksgiving.