Yeah
after that is a time connective
Rheumatologist usually but occasionally an immunologist.
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Yes it is ...
yes it is not a connectiv
No, "since" is not an adjective. It is commonly used as a conjunction or adverb to indicate time or cause.
Therefore is an adverb it shows a consequence, a result
Yes, I may occasionally from time to time give you a sentence , if one were to occasionally ask more questions.
firstly is not a adjective its a time connective
"while" can be considered a time connective when used to indicate a duration of time or a simultaneous action. It is used to show the relationship between two events happening at the same time or overlapping time periods in a sentence.
Is what a connective?