I was watching tv series where police said “he could have been wearing gloves’ I think he speculated the past event..but I really can't understand the reason behind using ing and been...because we usually speculate past thing something like that “they could have gone there” I want to know the meaning and you can give me more example like this
Have + past participle => perfect (eg I have seen)
Be + present participle => continuous (eg I am wearing)
Put them together and you get
Have + past participle of be + present participle => perfect continuous (eg I have been wearing)
I have worn gloves usually means "On at least one occasion, not necessarily recently, I wore gloves" - the "present relevance" indicated by the perfect here means "These occasions occurred over a period extending up to the present (even if there didn't happen to be a recent occasion)".
I have been wearing gloves focuses on the wearing as a continuing event: it usually indicates a recent occasion.