Seen in is not tense. The verb seen is the past participle of see but a past participle by itself does not make a tense.
have/has seen = present perfect
had seen = past perfect
was seen = passive
The tense "has seen" is in the present perfect tense. It is formed by combining the present tense of the auxiliary verb "has" with the past participle "seen" of the main verb.
The present tense is see/sees/seeing.
The past tense of "I have not seen your message" is "I had not seen your message."
You have seen is the present perfect tense of you see.
The past participle tense of "see" is "seen."
The tense "has seen" is in the present perfect tense. It is formed by combining the present tense of the auxiliary verb "has" with the past participle "seen" of the main verb.
The present tense is see/sees/seeing.
The past tense of "I have not seen your message" is "I had not seen your message."
You have seen is the present perfect tense of you see.
'Had seen' is the past perfect tense.The present perfect tense would be 'have/has seen'.
The past participle tense of "see" is "seen."
The past perfect tense of see is had seen. Not is an adverb.
It's the present perfect tense.
No. When you say you have seen something, you are using present perfect tense.
"have seen" is the verb, and it is in the present perfect tense.
The present perfect tense of "see" is "have seen." It is formed by using the present tense of "have" or "has" with the past participle of "see." For example, "I have seen that movie before."
Seen is the past participle of "see"