Rgx Pattern Match Time Layout (m s)

I'm not strong in regex pattern matching, but looking for some help. I'm trying to match this pattern using Regex.Match:

• 5m 26s
• 3m
• 42s
• 7m
• 4m 02s

I've checked the site and found some help but its not 100% what I'm looking (doesn't capture 3m & 7m or any with these type of values), all other value match.

I piece together: (m\s+)?(?:[1-5]?\ds) as based on my findings

Thanks for any assistance.