Some people get very frightened by grammar. Let's look at gerunds and infinitives.
All verbs have a base form. For example: write, read, swim
We add to if we want to make infinitives
to write, to read, to swim
We add ing if we want to make gerunds. Remember the spelling rules for verb + ing
writing, reading, swimming
Sometimes we want to use two verbs together. The second verb is often a gerund or an infinitive. Which do you use?