The present tense of the verb "watch" is "watches".
The present perfect tense of "watch" is "have watched" or "has watched." For example, "I have watched that movie before."
The present tense of the verb 'was' is is.
Can is the present tense.
The present tense for the verb "have" is "have" for the pronouns I, you, we, and they, and "has" for the pronouns he, she, and it.
"Is" is the present tense form of the verb "to be" and "has" is the present tense form of the verb "to have."
I/you/we/they have watched. He/she/it haswatched.
Studied is not a present tense verb. It is the past tense of study (present tense).
Present tense.
Washes is the present tense.
* I am * you/we/they are * he/she/it is
The present tense is 'is'