1, infinitive and gerund make a difference Subject:
Infinitive: emphasis on specific, one-time actions, such as:. To learn an art is very hard to learn an art very difficult.
Gerund: stressed repeatedly, abstract actions such as: working in these conditions is not a pleasure. work is not happy under these conditions.
It is usually done in the form of the subject to make the sentence more balanced:
It is very hard to learn an art.
It is not a pleasure working in these conditions.