Furthermore, the separation of tense and aspect in English is not maintained rigidly.

By rigidly maintaining the quality of his goods and rapidly developed his business.

The southern part of the country has traditionally more rigidly maintained the caste system than the northern regions.

The structural beauty of the Gothic arch means, however, that no set proportion had to be rigidly maintained.

Servants had their own hierarchies, as rigidly maintained as the Tower itself.

Only by rigidly maintaining his routines, never deviating, did he prove to himself that he was indeed in control.

This conformation is rigidly maintained by three hydrogen bonds (see legend to Fig. 2 a).

Finally, I rigidly maintained a sun-protective life style.

His military posture is stiff, self-conscious and rigidly maintained; it seems, at moments, to be all that is keeping him together.

While chronotherapy has been successful for some, it is necessary to rigidly maintain the desired sleep/wake cycle thenceforth.