Yes, loosened is the past participle of loosen.
loosened
Lost. Lost is the past tense of lose. The past tense of loose is loosened, though some say loosed.
'Loose' is an adjective, as in ' a box of loose screws'. The verb related to 'loose' is 'to loosen' and its past tense is 'loosened'.
She loosened the rope from around the pole
"i loosened up my skates" or anything that can be loosened up in a statement of the past or like what i just used it in
loose loosed loosedLoose the ropes we are leaving now!He loosed his grip suddenly.The dogs have been loosedThe dogs are loose: the dogs have been loosened. More correct is loosen the ropes. Loose is an adjective - the verb is loosen.So he loosened his grip - his grip was loose. The dogs were let loose, or loosened.In fact, it can use as an intransitive verb meaning to relax, although purists rarely use the word as anything but an adjective.
The word loosened is a verb. It is the past tense of the verb loosen.
The Loosened Plank - 1914 is rated/received certificates of: UK:U
Being is the present participle. The past participle is been.
Tighten
The past participle of do is done. The past participle of have is had.
Present participle - winding Past participle - winded