Let's first have a look at the structure of the Used-To Structure in terms of the various grammatical moods (indicative, interrogative, imperative) and in terms of polarity (positive and negative).
Positive Structures | |
---|---|
indicative | They used to smoke |
interrogative | Did she use to work? |
imperative | NOT APPLICABLE |
Negative Structures | |
---|---|
indicative (1) | We did not use to travel. |
indicative (2) | I used not to care. |
indicative contracted (1) | He didn't use to cook. |
indicative contracted (2) | They usedn't to watch. |
interrogative | Did you not use to drive? |
interrogative contracted | Didn't she use to swim? |
imperative | NOT APPLICABLE |
VERB? |
Tense/Modal/Structure |
ASPECT(s) |
VOICE |
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