A person may use in the past.Logical formLearned from269 sentences. A past can be murky.Logical formLearned from266 sentences. A past may pertain-to a mother.Logical formLearned from262 sentences. A symbol may pertain-to a past.Logical formLearned from261 sentences. A past can be difficult.Logical formLearned from257 sentences. A part may pertain-to the past.Logical formLearned from256 sentences. Persons may learn from the past.Logical formLearned from255 sentences. A sense may pertain-to the past.Logical formLearned from255 sentences. Memories may pertain-to a past.Logical formLearned from254 sentences. Traditions may pertain-to the past.Logical formLearned from248 sentences. Information can be about a past.Logical formLearned from248 sentences. A past can be dim.Logical formLearned from243 sentences. A past can be geological.Logical formLearned from243 sentences. A departure can be from the past.Logical formLearned from242 sentences. Relics may pertain-to the past.Logical formLearned from239 sentences.