An articular infinitive is an infinitive which stands with a preposition and its neuter definite article giving it a special meaning.
The articular infinitive of Specific uses include* ''time at whichTime during:'' is formed Formed with ''εν τω + infinitive'' and is translated along with as: ''when'' or ''while''+ verb* ''Purpose:'' Formed with ''εις το + infinitive'' or ''προς το + infinitive'' and is translated as: ''In order to'' + verb