Introductory it as Subject
(not) do help pay
1.2 it V to-infThe verb is followed by a to-infinitive clause.
|it||Verb group||to-infinitive clause|
|It||may help||to talk about it.|
|It||pays||to shop around for the best deals.|
Three of the verbs with this pattern indicate that something is helpful to someone, or is a good thing.The verb do usually occurs in negative clauses.
Different building societies offer different services so it pays to shop around.
I'm learning the language. A career diplomat has to. It doesn't do to have to use translators all the time.
There are two other verbs with this pattern.
Though his case was far from complete, he was convinced he was right. It remained to convince his superiors.