contain, contains, contained, containing

CONTAIN - PRESENT SIMPLE
★ i contain
★ you contain
★ he/she/it contains
★ we contain
★ you contain
★ they contain
CONTAIN - PRESENT CONTINUOUS
★ i am containing
★ you are containing
★ he/she/it is containing
★ we are containing
★you are containing
★ they are containing
CONTAIN - PRESENT PERFECT
★ i have contained
★ you have contained
★ he/she/it has contained
★ we have contained
★ you have contained
★ they have contained
The Simple Past Tense, also called Simple Past or Preterite is a verb tense that is used to describe completed action happened in the past. It is the most basic form of past tense and it is formed by adding d, ed or ied to the base structure of the verb.
Present Perfect is a tense used to express the activity that started in the past and is still going on in the present tense. In British English this is the most used tense of them all. When you want to tell about your experience up to the present, you use Present Perfect. The prepositions that are often used with this tense are NEVER, EVER, JUST, ALREADY, YET and many others.
CONTAIN - PRESENT PERFECT CONTINUOUS
★ i have been containing
★ you have been containing
★ he/she/it has been containing
★ we have been containing
★ you have been containing
★ they have been containing
CONTAIN - PAST SIMPLE
★ i contained
★ you contained
★ he/she/it contained
★ we contained
★ you contained
★ they contained
CONTAIN - PAST CONTINUOUS
★ i was containing
★ you were containing
★ he/she/it was containing
★ we were containing
★ you were containing
★ they were containing
CONTAIN - PAST PERFECT
★ i had contained
★ you had contained
★ he/she/it had contained
★ we had contained
★ you had contained
★ they had contained
A transitive verb always has a noun that receives the action of the verb, called the direct object.
An intransitive verb never has a direct or indirect object. Although an intransitive verb may be followed by an adverb or adverbial phrase, there is no object to receive its action
CONTAIN - PAST PERFECT CONTINUOUS
★ i had been containing
★ you had been containing
★ he/she/it had been containing
★ we had been containing
★ you had been containing
★ they had been containing
CONTAIN - FUTURE SIMPLE
★ i will contain
★ you will contain
★ he/she/it will contain
★ we will contain
★ you will contain
★ they will contain
CONTAIN - FUTURE CONTINUOUS
★ i will be containing
★ you will be containing
★ he/she/it will be containing
★ we will be containing
★ you will be containing
★ they will be containing
CONTAIN - FUTURE PERFECT
★ i will have contained
★ you will have contained
★ he/she/it will have contained
★ we will have contained
★ you will have contained
★ they will have contained
Present Simple is a tense used for talking about habits or activities that are constantly repeating. We also use Present Simple if we are talking about general thrust or facts about nature. This tense is also used in the Zero Conditional sentences and it is one of the most basic but also most important tenses of the English language. The most used prepositions with Present Simple are OFTEN, USUALLY, ALWAYS and many more.

CONTAIN - FUTURE PERFECT CONTINUOUS
★ i will have been containing
★ you will have been containing
★ he/she/it will have been containing
★ we will have been containing
★ you will have been containing
★ they will have been containing

conjugation of verb contain