Is this sentence correct

[english_learn]

I went on holiday in November 2012. which sentence below is correct?

"I documented all process of my work before I went on holiday last November"

"I documented all process of my work before I go on holiday last November"

[bhaisahab]

I went on holiday in November 2012. which sentence below is correct?

"I documented all process of my work before I went on holiday last November"

"I documented all process of my work before I go on holiday last November"

As far as the use of the verb "to go" is concerned, the first one is correct. The meaning, however, is not clear.

[english_learn]

Let me give another example.

“ I had mango before I went on holiday last year”
“ I had mango before I go on holiday last year”

Which sentence above is correct?

[Rover_KE]

As before, the first one is correct (or it would be if you ended the sentence with a full stop).

Rover

[emsr2d2]

Let me give another example.

“ I had mango before I went on holiday last year”
“ I had mango before I go on holiday last year”

Which sentence above is correct?

As the sentence is clearly in the past (I had / last year), how do you think "before I go" is possible?