"Stand" would be in the present tense. "Stood" would be the past. Example - Present: She must stand by the gate, Past: She stood by the gate.
Standing is not past tense. It is the present participle of the verb "stand". Present participles require the use of auxiliary verbs to show tense. Examples: was/were standing (past progressive) am/is/are standing (present progressive) will be standing (future progressive) Stood is the past tense of stand.
Present tense: are Past tense: were
"Stand" can be used in both present and past tense. In the present tense, it is used with a base form of the verb (e.g. stand, stands). In the past tense, it is used with "stood" (e.g. stood).
The word "standing" can be present tense (e.g. "I am standing") or past tense (e.g. "I was standing").
"received" is the past tense. The present tense of that word is "receive"
The past tense of stand is stood. Ran is already in the past tense. The present tense is run.
"Has" is in present tense. The past tense is "had".
The word "had" is a past tense verb.
Present tense - am, is and are. Past tense - was and were.
the word "was" is in the past, but the present tense of "was" is are
The past tense of 'present' is presented.
Past tense - was/were Present tense - am/are/is