彼は肩で押してそのスイングドアを開けた。

he; him; his; boyfriend

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

shoulder

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

to push; to press; to apply pressure from above; to press down; to stamp (i.e. a passport); to apply a seal; to affix (e.g. gold leaf); to press (someone for something); to urge; to compel; to influence; to overwhelm; to overpower; to repress; to push (events along); to advance (a plan); to do in spite of ...; to do even though ...; to force; to make sure; to be pressed for time; to advance troops; to attack; (of light) to be diffused across an entire surface

that (something or someone distant from the speaker, close to the listener; actions of the listener, or ideas expressed or understood by the listener); the; um...; er...; uh...

swing

door (Western-style)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to open; to bare; to expose; to stretch