The Formation of the Oblique Moods

Subjunctive I

	Synthetical form (1)	Analytical form
Present	I (he, she, we, you, they) be, have, speak	I (he, she, we, you, they) should be, should have, should speak.
Past	---	I (he, she, we, you, they) should have been, should have had, should have spoken.

(1) The form of Subjunctive I in Modern British English is mostly used in poetry and official documents. In colloquial speech the analytical form of Subjunctive I prevails.
In American English the synthetical form of Subjunctive I is colloquial.
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