Consequences (por isso)

Expressing Consequences with "Por Isso"

When you want to explain the result of a situation, use the connector por isso (therefore / so). Literally meaning "for that," it links a cause directly to its consequence or result.

The structure is very simple: state the reason, add a comma, and then use por isso followed by the result.

The alarm clock didn't ring, so I overslept.
O despertador não tocou, por isso adormeci.
The traffic jam was big, so I arrived late.
O engarrafamento era grande, por isso cheguei atrasado.

You will frequently use this connector to explain daily decisions, such as resting after a long day or changing your schedule.

The flight was very tiring, so I am resting at the hotel.
O voo foi muito cansativo, por isso estou a descansar no hotel.
I had an urgent problem, so I canceled the appointment.
Tive um problema urgente, por isso desmarquei o compromisso.

It is also perfectly suited for making minor excuses, like explaining why you are staying in or skipping a meal.

My head hurts, so I don't want to do anything today.
Dói-me a cabeça, por isso não quero fazer nada hoje.
My belly hurts, so I am not eating the dessert.
Dói-me a barriga, por isso não como a sobremesa.