It is a colloquial way to trail off in a sentence. "Ga" means "but" and when placed at the end of a sentence may translate to something with the effect of:
"Yeah, I know I need to study today, but..."
Desu. It is put at the end of a sentence. It can also mean 'it is'.
'Nanda' sounds Japanese but the o in the end could be just an interjection. 'Nanda' could mean different things when used in different situations, it could mean 'what??', 'what is it?', 'what (is that/did you say/etc) or sometimes at the end of sentence it adds something like 'it's like that', 'that's how it is' to the sentence. You might mean 'Nandou' which is a Japanese name.
iska does not occur on the end of Japanese names. desuka on the end of a sentence is denotes a question with the verb to be
asobukoto (mid sentence) / asobiteru (end of the sentence)
add ->Darou
Owari.
it indicates the end of a sentence.
A period (.) at the end of a sentence indicates the end of a statement or sentence in written language. It helps to signal a pause and a completion of a thought.
"Do not forget [object]"
End of the Spring
ip is not a Japanese word. Japanese words must end with a vowel or the letter N.
Terminate means to end or stop something. A period at the end of a sentence terminates the sentence.