Question

Which pattern of meter is used in this excerpt from "The Rime of the Ancient Mariner" by Samuel Taylor Coleridge?

The Bridegroom's doors are opened wide,
And I am next of kin;
The guests are met, the feast is set:
May'st hear the merry din.'

He holds him with his skinny hand,
'There was a ship,' quoth he.
'Hold off! unhand me, grey-beard loon!'
Eftsoons his hand dropt he.

? help plz?