Almost Increasing Sequence

Some random Codesignal problem.

func firstBadPair(sequence []int, n int) int {
    
    if 0 < n && n < len(sequence) - 1 {
        if sequence[n - 1] >= sequence[n + 1] {
    n-1
        }
    }

    for i := n + 1; i < len(sequence) - 1; i++ {
        if sequence[i] >= sequence[i + 1] {
            return i
        }
    }

    return -1
}

func almostIncreasing(sequence []int) bool {

    index := firstBadPair(sequence, -1)
    if index == -1 {
        return true
    }

    if firstBadPair(sequence, index + 1) == -1 {
        return true
    }

    if firstBadPair(sequence, index - 1) == -1 {
        return true
    }

    return false
}