Eating is a present participle, which can be used as a gerund, an adjective, or a verb. When present participles are used as verbs, they create the progressive (continuous) forms and require the use of an auxiliary verb to show tense. Am/is/are eatingis the present progressive tense. The past progressive tense is was/were eating.
To form the present progressive tense for "study," you would use the present tense of the verb "to be" (am/are/is) followed by the base form of "study" + ing. For example, "I am studying for my exam."
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.
To form the progressive tense, use a form of "to be" (am, is, are) followed by the present participle (verb + ing). For example, in the sentence "She is reading a book," "is" is the auxiliary verb and "reading" is the present participle.
The present progressive tense is formed with the verb "to be" in the present tense followed by the base verb + -ing (e.g., "I am running"). It is used to describe actions that are happening right now or are in progress at the moment of speaking. It can also be used to describe future plans or activities.
The present continuous/it's also called present progressive. (At the moment , here and now + you can use it for picture descriptions.)
The present participle is formed by adding "-ing" to the base form of the verb, regardless of the tense. For example, "walk" becomes "walking" in the present participle form.
There are two forms of the present perfect tense: simple present perfect (I have eaten) and progressive present perfect (I have been eating). Both forms use "have" or "has" with the past participle of the main verb to indicate an action that started in the past and has relevance to the present.
He eats a feast while the others are starving to death?This sentence has present simple - eatsand present contiuous - are starving.If you use present perfect and present contiuous/progressive the sentence would be:He has eaten a feats while the others are starving to death.
Depending on how you use the words some are already in the past tense. Got is the past tense of get. Present: I will get a dog. Past: I got a dog. With is a general term. It doesn't change in the past tense. Had is the past tense of has and had. Depending on which style of past you are using [progressive, perfect, progressive perfect, simple] will dictate how you use the word.
A symbol for tense in English grammar is the use of auxiliary verbs (e.g. "will" for future tense, "have" for perfect tense) or verb inflections (e.g. "-ing" for present progressive tense, "-ed" for past tense) to indicate the time of an action or event in relation to the present or to other events.
"is' is present tense. For past tense use was or were.