Very simply, say to yourself for each time you need to use a tense: Today [present tense] I RUN/ I eat/I pay Yesterday[ past tense] I RAN/ I ate/I paid Tomorrow [future tense] I WILL RUN/will eat/I will pay

Hello, You mean how to know which tense a verb is ,whether present, past , future, present perfect ,conditional ----etc ?? You will have to learn the conjunction of the verbs in different tenses so you would recognize it immediatley. For example when you know that verb (to go) is : I go ( present) I went ( past ) I have gone ( present perfect ) will go ( future) When you read the following sentences : " I went to Paris last month to visit my friend" ( you will recognize here the past tense of verb "to go" " I like to go shopping every now and then" ( you will recognize the present tense of the same verb" You can use grammar books or online grammar sites to learn the conjunction of regular and irregular verbs Regular verbs have a simple conjunction that forms its past and participant ,,,, such as verb to play play played have played had play etc ( adding "ed" to the past and participant) Irregular verbs differ and vary in their conjunctions and there is a list of irregular verbs that you have to learn by heart or by practice such as the above mentioned verb "go" ,as well as verb "do" do did done I hope I answered your question and that is what you wanted to know :)