彼は力いっぱいドアを押し開けようとした。

he; him; his; boyfriend

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

with might and main; with all one's strength

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 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

to open; to bare; to expose; to stretch

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to