Here ya means “already.” Typical placement is before the verb phrase: Ya he terminado… You can also place it after the participle: He terminado ya, which sounds a bit more conversational or emphatic. Avoid He ya terminado, which is not natural. Other meanings to know:
With the auxiliary haber (present perfect), the past participle never changes for gender or number. It’s invariable: He terminado la tarea, He terminado los informes, He terminado mi informe. Agreement happens when the participle is used as an adjective (often with estar):
Both are possible:
Usually, yes. Nuances:
Use the direct object pronoun lo (because informe is masculine singular):
The usual order is: ya + pronoun(s) + haber + participle.
Yes. Tener + participio focuses on the result you “have” accomplished: Ya tengo terminado el informe / Tengo el informe terminado. With tener, the participle often agrees with the direct object:
Yes, but they sound more formal/bureaucratic:
Use terminar de + infinitive to say you finished doing an activity: