underwent
The past tense of undergo is underwent
The Forms of Undergo
| Infinitive |
to undergo |
| Present Tense |
undergo / undergoes |
| Past Tense |
underwent |
| Present Participle |
undergoing |
| Past Participle |
undergone |
Conjugate Undergo
Undergo in Present Simple (Indefinite) Tense
| Singular |
Plural |
| I undergo |
We undergo |
| You undergo |
You undergo |
| He/She/It undergoes |
They undergo |
Undergo in Present Continuous (Progressive) Tense
| Singular |
Plural |
| I am undergoing |
We are undergoing |
| You are undergoing |
You are undergoing |
| He/She/It is undergoing |
They are undergoing |
Undergo in Present Perfect Tense
| Singular |
Plural |
| I have undergone |
We have undergone |
| You have undergone |
You have undergone |
| He/She/It has undergone |
They have undergone |
Undergo in Present Perfect Continuous Tense
| Singular |
Plural |
| I have been undergoing |
We have been undergoing |
| You have been undergoing |
You have been undergoing |
| He/She/It has been undergoing |
They have been undergoing |
Undergo in Past Simple (Indefinite) Tense
| Singular |
Plural |
| I underwent |
We underwent |
| You underwent |
You underwent |
| He/She/It underwent |
They underwent |
Undergo in Past Continuous (Progressive) Tense
| Singular |
Plural |
| I was undergoing |
We were undergoing |
| You were undergoing |
You were undergoing |
| He/She/It was undergoing |
They were undergoing |
Undergo in Past Perfect Tense
| Singular |
Plural |
| I had undergone |
We had undergone |
| You had undergone |
You had undergone |
| He/She/It had undergone |
They had undergone |
Undergo in Past Perfect Continuous Tense
| Singular |
Plural |
| I had been undergoing |
We had been undergoing |
| You had been undergoing |
You had been undergoing |
| He/She/It had been undergoing |
They had been undergoing |
Undergo in Future Simple (Indefinite) Tense
| Singular |
Plural |
| I will undergo |
We will undergo |
| You will undergo |
You will undergo |
| He/She/It will undergo |
They will undergo |
Undergo in Future Continuous (Progressive) Tense
| Singular |
Plural |
| I will be undergoing |
We will be undergoing |
| You will be undergoing |
You will be undergoing |
| He/She/It will be undergoing |
They will be undergoing |
Undergo in Future Perfect Tense
| Singular |
Plural |
| I will have undergone |
We will have undergone |
| You will have undergone |
You will have undergone |
| He/She/It will have undergone |
They will have undergone |
Undergo in Future Perfect Continuous Tense
| Singular |
Plural |
| I will have been undergoing |
We will have been undergoing |
| You will have been undergoing |
You will have been undergoing |
| He/She/It will have been undergoing |
They will have been undergoing |
