Yes, it is a form of the verb "to narrow" (to make or become less wide). It is the past tense and past participle of the verb, and may be used as an adjective (e.g. narrowed arteries).
"Had" is a verb. It is the past tense of the verb "have."
Examples of words ending in -tch with their corresponding parts of speech:batch = verb, nounblotch = verb, nouncatch = verb, nounclutch = verb, noun, adjectivecrutch = nounditch = verb, nounDutch = noun, adjectivedutch = adverbfetch = verb, nounglitch = verb, nounhatch = verb, nounhutch = nounitch = verb, nounlatch = verb, nounmatch = verb, nounpatch = verb, nounpitch = verb, nounscratch = verb, noun, adjectivesketch = verb, nounstitch = verb, nounstretch = verb, noun, adjectiveswitch = verb, nounthatch = verb, nountwitch = verb, nounwatch = verb, nounwitch = verb, noun
The verb 'be' can function as both a linking verb and a helping verb. As a linking verb, it connects the subject with a subject complement that describes or renames it. As a helping verb, 'be' is used in progressive tenses and passive voice constructions to indicate the tense of the main verb.
verb
Helping verb.
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well I was taking a science test and the answer is heart failure
narrowmarrowharrowbarrowsparrowsparrow
kayak
A synonym for broadened is narrowed.
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structure
In the northwest corner of the isle :)
Become or make less wide: "the road narrowed and crossed an old bridge"; "the embankment was built to narrow the river", "Her eyes narrowed showing she was angry and suspicious"
They Have Narrowed Due To The Bild Up Of Plaque.
Narrowed Isle :)
Angioplasty is a procedure that widens narrowed or obstructed arteries or veins.