彼はまだお母さんと連絡を取っていない。

he; him; his; boyfriend

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

as yet; hitherto; only; still; not yet (with negative verb); more; besides; unfinished; incomplete; not yet finished with

mother

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

to contact; to get in touch; contacting; getting in touch; communication; call; message; connection; coordination; junction; intercalary; intercalaris; internuncial

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 take; to pick up; to harvest; to earn; to win; to choose; to steal; to eat; to have (a meal); to remove (one's glasses, etc.); to compete (in sumo, cards, etc.); to play