= 161. 2*362 (075. 8) К211 ббк [81. 2-2 Англ + 81. 2-2 Укр] я 73

The category of posteriority (слщування) is the system of two-member opposemes, like shall come and should come, will be writing and would be writing, showing whether an action is posterior with regard to the moment of speech or to some moment in the past.
As we know, a "past tense" verb denotes an action prior to the moment of speech and a "future tense" verb names a posterior action with regard to the moment of speech. When priority or posteriority is expressed in relation to the moment of speech, we call it absolute. But there may be relative priority or posteriority, with regard to some other moment. A form like had written, for instance, expresses an action prior to some moment in the past, that is it expresses relative priority. The form should enter expresses posteriority with regard to some past moment that is it expresses relative posteriority.

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This category is not distinguished by all linguists since the issues presented here are very often discussed within the category of tense (sequence of tenses of the English language) [24; 146-147].
The category of order (time correlation) (категорк часовен сшввщнесеноеп) is a system of two-member opposemes, such as writes - has written, wrote - had written, writing - having written, to be written — to have been written, etc. showing whether an action is viewed as prior to ("perfect"), or irrespective of ("non-perfect"), other actions or situations. The interpretation of this category also belongs to controversial problems of the English grammar [24; 130].
Summing up the main points concerning the category of tense expression in the contrasted languages, the following should be stated. The grammatical category of tense expresses the relation of the action or state to the moment of speaking. In both languages it is closely connected with the category of aspect and is expressed by the majority of forms.
In Ukrainian the verb has the forms of the present tense (роблю), the future tense (two forms: робитиму, буду робити), the past tense (робив) and the pluperfect tense (давноминулий) {буе робив). From these forms the present, past and future of the type робитиму are synthetic ones and the composite future tense is the analytical one.
In English the verb has three main tenses: the present, the past and the future. Each tense form has the common (or non-continuous) and the continuous aspect. Only in the common aspect the present and the past tenses are synthetic ones in the affirmative form. In the interrogative and in the negative forms these tenses, similar to other tense forms and tense-aspect forms, are analytical ones.
According to the Russian linguist A.I. Smirnitskyj in English there is a special grammatical category of the tense reference (часова ввднесенгсть) which is expressed with the help of special tense forms, known as Perfect and Perfect-Continuous forms. This category is by itself the mediate (опосередкований) complex form of the tense reference. The reference to some tense is complicated by the fact that by this it is pointed out to the antecedence/precedence (передування) to some event or phenomena. Unlike this imperfect forms are the categorical forms of the immediate, simple tense reference (безпосередня, проста часова ваднесенють).
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The special class of verb forms is created by four English tense forms of the so called "Future in the Past". Their basic meaning is the notion which is happening during the time, which was future from the point of view of the past moment that is from the point of view of the speaker who produced his utterance in the past. So this tense denoting is also to some extent a relative one [5; 78].