| singular | plural |
| Infinitive | | |
| substantiate | |
| present simple | | |
| 1 | I substantiate | we substantiate |
| 2 | you substantiate | you substantiate |
| 3 | he/she/it substantiates | they substantiate |
| past simple | | |
| 1 | I substantiated | we substantiated |
| 2 | you substantiated | you substantiated |
| 3 | he/she/it substantiated | they substantiated |
| future simple | | |
| 1 | I will/shall substantiate | we will/shall substantiate |
| 2 | you will/shall substantiate | you will/shall substantiate |
| 3 | he/she/it will/shall substantiate | they will/shall substantiate |
| conditional simple | | |
| 1 | I would substantiate | we would substantiate |
| 2 | you would substantiate | you would substantiate |
| 3 | he/she/it would substantiate | they would substantiate |
| present continuous | | |
| 1 | I am substantiating | we are substantiating |
| 2 | you are substantiating | you are substantiating |
| 3 | he/she/it is substantiating | they are substantiating |
| past continuous | | |
| 1 | I was substantiating | we were substantiating |
| 2 | you were substantiating | you were substantiating |
| 3 | he/she/it was substantiating | they were substantiating |
| future continuous | | |
| 1 | I will be substantiating | we will be substantiating |
| 2 | you will be substantiating | you will be substantiating |
| 3 | he/she/it will be substantiating | they will be substantiating |
| conditional continuous | | |
| 1 | I would be substantiating | we would be substantiating |
| 2 | you would be substantiating | you would be substantiating |
| 3 | he/she/it would be substantiating | they would be substantiating |
| present perfect | | |
| 1 | I have substantiated | we have substantiated |
| 2 | you have substantiated | you have substantiated |
| 3 | he/she/it has substantiated | they have substantiated |
| past perfect | | |
| 1 | I had substantiated | we had substantiated |
| 2 | you had substantiated | you had substantiated |
| 3 | he/she/it had substantiated | they had substantiated |
| future perfect | | |
| 1 | I will have substantiated | we will have substantiated |
| 2 | you will have substantiated | you will have substantiated |
| 3 | he/she/it will have substantiated | they will have substantiated |
| conditional perfect | | |
| 1 | I would have substantiated | we would have substantiated |
| 2 | you would have substantiated | you would have substantiated |
| 3 | he/she/it would have substantiated | they would have substantiated |
