Получить следующий элемент for

s = ['[00:00.64]First song words', '[00:02.39]Another words']
for i in s:
        i = i
        mm, ss, ms = map(int, re.split(r'[:.]', re.search(r'(?<=\[).+?(?=])', i)[0]))
        print(f'''----------
        starttime = {(mm * 60) + ss}
        text: {i.split("]")[1]}''')

>>> s = [1, 2, 3, 4, 5]
>>>
>>> for x in range(len(s)-1):
...     print(f'start: {s[x]}, end: {s[x+1]}')
...
start: 1, end: 2
start: 2, end: 3
start: 3, end: 4
start: 4, end: 5

s = ['[00:00.64]First song words', '[00:02.39]Another words', '[00:04.39]Heloo',  '[00:08.40]Everyone']
for i in s:
        nextind = s.index(i) + 1
        try:
                endmm, endss, endms = map(int, re.split(r'[:.]', re.search(r'(?<=\[).+?(?=])', s[nextind])[0]))
                endtime = endmm * 60 + endss
        except IndexError:
                endtime = 'last element'
        except Exception as e:
                print(e)
        mm, ss, ms = map(int, re.split(r'[:.]', re.search(r'(?<=\[).+?(?=])', i)[0]))
        print(f'''----------
        starttime = {(mm * 60) + ss}
        endtime = {endtime}
        text: {i.split("]")[1]}''')

s = ['[00:00.64]First song words', '[00:02.39]Another words',
     '[00:04.39]Heloo',  '[00:08.40]Everyone']
 
 
def get_words(w):
    return w.split(']')[1]
 
 
def get_time(t):
    return int(t.split(':')[1].split('.')[0])
 
 
for x in range(len(s)):
    words = get_words(s[x])
    start = get_time(s[x])
 
    if x == len(s)-1:
        end = 'last words'
    else:
        end = get_time(s[x+1])
 
    print('----------')
    print(f'starttime = {start}')
    print(f'endtime = {end}')
    print(f'text: {words}')