Ik bel u morgen terug.
Ik wil terugbellen.
Ik heb teruggebeld.
I'll call you back tomorrow.
Yes. terugbellen splits into terug + bellen. In a main clause the prefix goes to the end: Ik bel u morgen terug.
The perfect tense is "Ik heb teruggebeld" — the -ge- slots between the prefix and the stem.
terugbellen means "to call back". Example: Ik bel u morgen terug. (I'll call you back tomorrow.)
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