Foundation
English
Prepositions
Sentences
Tenses
Question
You must part with your purse. On this condition only you can save your life.
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Solution
You must part with your purse to save your life.
"On this condition only you can save your life" has been changed into a phrase containing the infinitive "to save". In order to join sentences using an infinitive, we need to focus on the verb in the second sentence that is to be added and convert it to an infinitive.