A. J. Lohwater's Russian-English Dictionary of the Mathematical Sciences

Russian verbs are classified as members of either the first or second conjugation, according to their nonpast personal endings. It is possible, however, for a verb to exhibit a mixed conjugation; that is, some of its endings are those of the first conjugation, while the rest are from the second. The following chart shows the endings of the two conjugations:

	First Conjugation		Second Conjugation
	Singular		Plural		Singular		Plural
1st person	-ю (-у)		-ем		-ю (-у)		-им
2nd person	-ешь		-ете		-ишь		-ите
3rd person	-ет		-ют (-ут)		-ит		-ят (-ат) 3

The verb читать is of the first conjugation: я читаю, ты читаешь, он читает, мы читаем, вы читаете, они читают. The verb говорить is of the second conjugation: я говорю, ты говоришь, он говорит, мы говорим, вы говорите, они говорят. The forms in parentheses, first person singular and third person plural, are common alternate endings and occur when dictated by certain spelling conventions.

A verb typically consists of several components when fully conjugated, although there are variations; perfective verbs, for instance, have no present tense, and thus no present participles. Among the inventory of components are the infinitive, the present, future, and past tenses (the indicative mood), the imperative mood, the conditional mood, the present participles, the past participles, and the gerund, or adverbial participle.

1. Sample verb conjugations. The following are sample conjugations. The Appendix includes a more comprehensive set of paradigms, as well as a list of common irregular verbs and their conjugations. The paradigms in the Appendix follow the given format, but are somewhat condensed and abbreviated where possible (for instance, only the masculine form of a participle is given).

делать (imperfective), "to do"
present tense
я делаю		I do, I am doing		мы делаем		we do
ты делаешь		you do		вы делаете		you do
он делает		he, it does		они делают		they do
она делает		she, it does
оно делает		it does
future tense
я буду делать		I will do		мы будем делать		we will do
ты будешь делать		you will do		вы будете делать		you will do
он будет делать		he, it will do		они будут делать		they will do
она будет делать		she, it will do
оно будет делать		it will do
past tense   делал, делала, делало, делали
я делал		I did, I was doing		мы делали		we did, we were doing
ты делал(а)		you did, you were doing		вы делали		you did, you were doing
он делал		he, it did, he, it was doing		они делали		they did, they were doing
она делала		she, it did, she, it was doing
оно делало		it did, it was doing
imperative делай (singular); делайте (plural) do! make!
participles
adverbial participle
делая		doing, making, if we make
сделать (perfective), "to do"
no present tense
future tense
я сделаю		I will do		мы сделаем		we will do
ты сделаешь		you will do		вы сделаете		you will do
он сделает		he, it will do		они сделают		they will do
она сделает		she, it will do
оно сделает		it will do
past tense   сделал, сделала, сделало, сделали
я сделал		I did		мы сделали		we did
ты сделал(ла)		you did		вы сделали		you did
он сделал		he, it did		они сделали		they did
она сделала		she, it did
оно сделало		it did
imperative сделай (singular); сделайте (plural) do! make!
participles
adverbial participle
сделав		having done, having made