TÄ°D does not have rich inflectional morphology expressing tense, aspect, or modality. Instead, it makes use of a number of free lexical items (markers) that express these inflectional notions. Some sign languages also have agreement markers (or agreement auxiliaries). However, this category has not been observed in TÄ°D.
For inflectional morphemes expressing tense, aspect, modality, and agreement, see [Morphology - 3].