Grammar awareness course question 1

For each of the following five sentences:
(i) Identify the verb phrase.
(ii) Name the structure.
(iii) Label the parts of the structure.
(iv) Describe the functional meaning conveyed by the verb in the sentence.

Examples:

I start work at seven every morning.
(i) start
(ii) present simple
(iii) base form
(iv) a routine

I was living in Peru at the time.
(i) was living
(ii) past continuous
(iii) auxiliary 'be' (past tense) + present participle
(iv) an activity in progress at a specified time in the past

these are the examples provided by the assignment. The question I'm stuck on is....

I went to Thailand last year to teach.
1. Went
2. past simple

3? I need to label the parts of the structure. I'm on my final attempt and am getting worried I cannot get it right