These never stand alone — they ride on the end of a noun, a verb, or a preposition.

• ـهُ
  his, him, its

  -hu

  attached pronoun · 3364×
• ـهَا
  her, it, its

  -hā

  attached pronoun · 1187×
• ـهُمَا
  their, them (two)

  -humā

  attached pronoun · 157×
• ـهُمْ
  their, them

  -hum

  attached pronoun · 3455×
• ـهُنَّ
  their, them (women)

  -hunna

  attached pronoun · 200×
• إِيَّاكَ
  You alone (as object)

  iyyāka

  pronoun · 2×