My native language is Swedish. In all the above examples we would also use the infinitive. If this was a course for Swedish speaking people, this lesson would be unnecessary! Is Spanish grammar generally more similar to Swedish grammar than to English grammar? I don't know, but probably not.
This was just a reflection, not a question that I expect to be answered.
Hola Per-Olof
Thank you for your reflection! While we don't know Swedish grammar well, it's interesting that both Spanish and Swedish use the infinitive in similar cases. However, overall, Spanish grammar tends to have more in common with other Romance languages than with English or Swedish.
Saludos
Silvia
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