Answer:
1.Have arranged
2.I've heard(I have heard), have heard
3.Has not (hasn't)
4.Have spoken
Explanation:
Present perfect tense is formed with the use of has or have(NOTE<em><u>:"HAD"</u></em> is Excluded) and the simple present tense of the predicate(verb)
Most people confuse this with <u>present continuous tense</u> but it's widely different
Declarative - I study German on Fridays.
Imperative - you must go to school.
Exclamatory - what a coincidence!
Interrogative - what is your name?
