Аннотация:The article is devoted to the role of the particles ang and ay in several types of the Tagalogcomplex sentences. These particles are usually used in simple sentences as markers of subjectand predicate o topic and focus. But sometimes we can see them in complex sentences wherea clause is used instead of a subject or predicate. They can be also found in sentences withadverbial clauses of cause or reason, time, condition, object and concession.