as well —— might
• used to convey the speaker's opinion that a person's reaction is appropriate or unsurprising.
• "she sounded rather chipper, as well she might, given her bright prospects"
may as well
• used to make an unenthusiastic suggestion.
• "I may as well admit that I always underestimated John"
• used to indicate that a situation is the same as if the hypothetical thing stated were true.
• "the road was open again, but may as well have remained closed, such were the delays"