Swedish: An Essential Grammar, 2nd edition

Fredrik sa,
att
igår
tänkte
han åka till stan.
Fredrik said that yesterday he was thinking of going to town.
2 Att-clauses with FV-CA order:
In some cases the clausal adverbial adopts the same position as in the
main clause, i.e. after the finite verb, rather than its usual subordinate clause
position before the finite verb:
Conj.
S
FV
CA
Fredrik sa,
att
han
tänkte
inte åka idag.
Fredrik said that he was not thinking of leaving today.
This is only found in spoken Swedish.
Write:
Conj.
S
CA
FV
Fredrik sa,
att
han
inte
tänkte åka idag.
An explanation for this order is that the att-clause is regarded as a statement
in direct speech, i.e. as a main clause. Cf.:
Fredrik sa: ’Jag tänker inte åka idag’. 
Fredrik said ‘I am not thinking of leaving today’.
The conjunction att then functions almost as a colon.
3 Conditional clauses with yes/no question order:
Conditional clauses are usually introduced by om or ifall:
Om du inte skriver till mor, blir hon ledsen.
If you don’t write to Mum, she will be upset.
12.8.3
1111
2
3
4
5
6
7
8
9
1011
1
12111
3
4
5
6
7
8
9
20111
1
2
3
4
5
6
7
8
9
30111
1
2
3
4
5
6
7
8
9
40
41111
Subordinate
clauses
203

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But conditional clauses are also found which possess no subordinating
conjunction, and rely on inverted word order (FV-S) to indicate condition: