hi, am learning english as a beginer and i nwanted to know wat type os speech do the following words belong to, the,well,were, sent and battle

the: definite article, a type of adjective)
well: an adverb (as in done well), an adjective (meaning healthy) or a noun (meaning where you collect water)
were: a verb (in the past tense)
sent: a verb (past participle)
bat: a noun (as in a cricket bat) or a verb (as in to bat)

That was just a quick run through for you.