is really a matter of learning which verbs take 'to-infinitive' clauses
and which take an '-ing' clause, Claudia.
For example, 'hope', 'expect', 'learn' normally take 'to-infinitive':
- 'I learnt
to swim in Portugal last summer.'
- 'I expect
to get high marks in this exam because I put in a lot of work
- 'I hope
to recover in time for my business trip to Thailand in August.'
some verbs, e.g. 'tell', 'advise', 'ask', 'to-infinitive' follows
'We asked them to show us the way.'
'He advised me to drive more slowly through the
'I told him to be quiet.'