G. , introduced and thought), however the naked types of those verbs are convey and imagine, now not *bruy and *thuy,3 that's what they'd need to be in the event that they have been topic to a similar (non-existent) development that derived got from purchase. the second one approach we all know there is not any rule that relates purchase and purchased is that different verbs that sound like purchase don't logically fall into an analogous 12 knowing English Grammar trend. So, not just is it U N G R A MM A T IC A L , but in addition no longer even logical to consider the prior demanding of cry as *crought, or die as *dought, and so on. four for this reason, the I D I OS Y N C R A TI C (apparently random) formal version that expresses the prior stressful has to be indexed within the lexical access for the verb purchase. It can't be guessed from the shape of the verb itself. as a result it constitutes lexical expression. ultimately, the final subtype of lexical expression is usually termed I S OM O R P H I SM . this can be the place a typical, anticipated adjustment in which means is finished by means of now not altering the shape in any respect. for instance, the previous annoying of the verb hit is hit. The naked stem is used, with out -ed extra. it is a truth in regards to the verb hit that simply should be memorized. It can't be guessed (or “predicted”) by way of employing a rule; as a result it truly is lexical expression. The lexical access for the verb hit has to specify, between many different issues, that the earlier stressful is just hit. Why may we name earlier demanding formation for the verb hit an “expression” in any respect whilst the notice doesn't switch its shape? Why don’t we simply say that prior demanding isn't really expressed for this verb? Aren’t there loads of different that means elements that experience no overt expression? for instance, a sentence like John is operating leaves a lot info out, a few of that could be expressed grammatically in a few languages. He should be operating upriver or downriver, in the course of the day or at evening, with an awl or together with his fingers, and so forth. If we are saying that hit expresses earlier stressful lexically, could we wish to say that every one of those different notions (and many extra) also are expressed lexically in English? I don’t imagine so. What makes the earlier annoying of the verb hit in English an expression is that we predict all English verbs to have a earlier annoying shape. the truth that hit doesn’t swap the best way many different verbs do is significant. you'll say that there's a “conspicuous absence” of a prior demanding marker for the category of verbs to which hit belongs. there's no analogous expectation that English verbs should still exhibit even if the motion occurs upriver or downriver, at evening or in the course of the day, with fingers or with an awl. In precis, the 3 subtypes of lexical expression we are going to be contemplating during this ebook are:    (Strong) Suppletion – changing one stem with a totally designated one susceptible suppletion – changing one stem with a randomly comparable one Isomorphism – no overt structural swap. Morphological expression Morphological expression involves patterned adaptations in shape that accomplish diversifications in which means by way of changing the shapes of phrases. for instance, the adaptation among the noises spelled name and referred to as follows a typical trend.