All of the הִפְעִיל perfect forms begin with a ה prefix. In most cases the masculine singular (which has no suffix) forms two closed syllables, with the י acting as a vowel letter: הִזְ-כִּיר (he has caused someone to remember).
The perfect suffixes in binyan hif’il are the same as those in pa’al and all the other binyanim. In the hif’il third person feminine and plural forms, however, the suffix is not stressed; the stress is on the next-to-last syllable – the one with the י vowel letter – not on the last syllable: הִזְ-כִּ֫י-רָה , הִזְ-כִּ֫י-רוּ (they/she have caused [someone] to remember).
In the first and second person, the י drops out; the vowels and the stress of the last two syllables are identical to pa’al. הִזְ-כַּ֫ר-תִּי (I have caused [someone] to remember).
The פ”נ and ל”ה paradigms produce modifications to the hif’il forms that are parallel to those in other binyanim. However, the פ”י paradigm has a different compensation; the י root letter changes to a וֹ vowel letter: הוֹצִיא (he has brought [something] out). In ע”ו verbs, the vowel under the ה prefix is tseirei rather than khirik, and there are additional changes in the first and second-person forms.