the N be to-inf
Nouns with this pattern belong to the following meaning groups:The 'aim' groupThe 'trick' groupThe 'plan' groupThe 'challenge' groupThe 'effect' groupThe 'temptation' group
the N be to-infThe noun is preceded by the and is followed by a form of the verb be and a to-infinitive clause. Some nouns which can be followed directly by to-infinitive clauses, and some which cannot, can be used in this pattern. This pattern is a way of introducing and labelling the action you are going to mention.
|The||idea||is||to help people find jobs.|
|The||trick||is||to plan ahead.|
|The||easiest||way||is||to cut back on staff.|