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