Translation of "been present" into Italian

I've been present for the birth of every little creature on this island.

Ho assistito alla nascita di ogni creatura presente sull'isola.

It is a question of intervening in areas where armed independence movements have been present and active for a long time.

Si tratta di intervenire in zone dove sono presenti e attivi, da molto tempo, movimenti armati indipendentisti.

If you had been present on those occasions, perhaps you would have felt the same way.

Se fossimo stati presenti in quelle occasioni, probabilmente avremmo provato gli stessi sentimenti.