Answer:
would have given.
Step-by-step explanation:
A verb phrase is a phrase that includes a main verb, modal and an auxiliary verb. The pattern usually follows first with a modal then an auxiliary verb and finally the main verb. In fact, in a verb phrase, the main verb should always come last.
Here, the verb phrase is "would have given" as it includes a modal which is 'would', an auxiliary verb which is 'have' and the main verb which is 'given'. In some cases, there can two auxiliary verbs in a verb phrase such as 'would (have been) giving' or 'might (have been) dancing'.