英会話カランメソッド復習(Stage 3)

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A gerund is a noun that we make by putting the letters ‘ing’ at the end of a verb.
For example, “speaking“, “eating”, “coming”. 

In English, after a preposition we use a noun.
For example, “on the table”, “after the lesson”.

If we want to say an action after a preposition, we use the gerund – not the infinitive. 
For example, we say “for buying”, “after eating” etc. 

Do we use the gerund or the infinitive after a preposition? 
We use the gerund after a preposition.