In the Present Indicative (which is likely the tense you are thinking of), the answer is Yes. One example from each category (ar/er/ir):
Pensar: pienso, piensas, piensa, pensamos, pensáis, piensan
Encender: enciendo, enciendes, enciende, encendemos, encendéis, encienden
Servir: siervo, sierves, sierve, servimos, servís, sierven
However, once we move into other tenses and moods, there are more complex rules.
In the case of "ar" and "er" radical-changing verbs, like pensar and encender, the only other tense/mood that is effected is the Present Subjunctive. Similar to Present Indicative, the nosotros and vosotros forms are not affected by the radical change. (Naturally, since the Imperative is based off of the Present Subjunctive, these alterations follow into the Imperative.)
Pensar: piense, pienses, piense, pensemos, penséis, piensen
Encender: encienda, enciendas, encienda, encendamos, encendáis, enciendan
However, "ir" verbs that stem-change have a stem-change that occurs in the Present Subjunctive for all six forms. Note the follow three verbs which represent three distinct radical changes (e->ie, e->i, and o->ue).
Servir: sierva, siervas, sierva, sirvamos, sirváis, siervan
Pedir: pida, pidas, pida, pidamos, pidáis, pidan
Dormir: duerma, duermas, duerma, durmamos, durmáis, duerman
Note that many verbs that exhibit radical changes in the present tense (especially those that end in "er" or "ir") will have additional types of radical changes in the Preterit Tense (and all derived tenses), and the Future/Conditional Stem.
What is the cause and the effect in the story
It means that the cause must come before the effect. For example, the stoplight turns red (cause) before the car stops (effect), so the cause is written before the effect. Linear order.
1 syllable:becht, brecht, checked, decked, fecht, hecht, knecht, necked, pecht, precht, recht, schlecht, sect, specht, trekked, wecht, wrecked2 syllables:affect, bedecked, collect, confect, connect, correct, defect, deflect, deject, deregt, detect, direct, dissect, effect, eject, elect, erect, expect, infect, inject, inspect, neglect, object, perfect, project, protect, rechecked, reflect, reject, select, subject, suspect, unchecked3 syllables:amish sect, child neglect, disaffect, disconnect, disinfect, disrespect, incorrect, indirect, interject, intersect, in effect, liege subject, misdirect, nondirect, past perfect, rape suspect, recollect, reconnect, redirect, reelect, reinspect, resurrect, short subject, side effect, skin effect, sound effect, stage direct, stage effect, take effect4 syllables:coattails effect, doppler effect, future perfect, greenhouse effect, interconnect, law of effect, murder suspect, overprotect, present perfect, special effect, teleconnect, willful neglect5 syllables:robbery suspect
Spiky or wavy surfaces have the effect of damping sound. Snow is spiky if you look through a microscope at it.
"How Dirty Boys Get Clean"or"The axe effect"
Yes, the sentence has a singular subject (one tragic effect), and a singular verb (massive flooding.)
Changing the length will increase its period. Changing the mass will have no effect.
by changing load its terminal voltage changes.
Changing the pacing can bulid tension and suspense.
Less current.
how can effect the changing role of the government to public finance
The possessive form of the singular noun scientist's.The plural form of the noun is scientists.The plural possessive form scientists'.Examples:One scientist's observation found that there was no effect. (singular)Several scientists' reports showed a detrimental effect. (plural)
Decreased the FEV1 %
They were mistreated
The color changing effect in a color changing popsicle is typically achieved through the use of pH-sensitive compounds called anthocyanins. These compounds change color in response to changes in acidity levels. When the popsicle is exposed to acidic conditions, such as when it is licked or melted in the mouth, the anthocyanins react and change color, creating the color changing effect.
By changing affect to effect. Affect is a verb; effect is a noun.
The Doppler effect