Als

introduce a conditional or temporal clause

Main clause, subordinating clause (subordinate sentence) - In this example, 'Als het regent' is the subordinate clause and affects the main clause 'blijf ik binnen'.

expressing conditions or situations

Subordinate clause comes first or second - The order can change, but the meaning stays the same. The subordinate clause can also start the sentence.

Subordinate clause first

In this case, the subordinate clause 'Als hij komt' comes first, followed by the main clause.

Subordinate clause second

Here, the main clause 'We beginnen' comes first, and the subordinate clause follows.

als + present tense

This combination is used to talk about future possibilities or habitual actions.

als + past tense

Used for hypothetical situations in the past.